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CATHODE-RAY OSCILLOSCOPES 

AUXILIARY INSTRUMENTS AND ACCESSORIES 



CATALOG 14 



MARCH 1956 



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the electronics industry and limited only by 
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About f he Company . . . 

Tektronix was organized in 1946 to manufacture cathode-ray 
oscilloscopes. To an unusual degree, Tektronix oscilloscopes have 
met with the approval of the ultimate user, enabling the company 
to grow by expanding its product lines and services. 

Throughout this continuing growth period Tektronix is striving 
to produce instruments with the quality and utility demanded by 
the fast-moving electronic industry. High employee morale, 
fostered by an employee-management relations program that gives 
employees a voice in company operations, a fair share of company 
profits, and steady year around employment, contributes greatly 
to this aim. 

Realizing the complexity of the modern cathode-ray oscillo- 
scope, Tektronix continually strives to provide the best in field 
maintenance help, and the utmost speed in replacement parts 
service. Helping to keep existing Tektronix instruments in efficient 
operation is as much a responsibility as developing new instru- 
ments to meet the future needs of the industry. Tektronix is mak- 
ing every effort to continue serving its customers with the highest 
quality in both product and service. 



Tektronix, Inc., an Oregon Corporation, Portland 7, Oregon, U. S. A. 




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CONTENTS 

REFERENCE CHART 5 

APPLICATIONS GUIDE 6 

SQUARE-WAVE GENERATORS 

Type 1 04A Fixed Frequency 11 

Type 1 05 Wide Frequency Range 13 

AUXILIARY AMPLIFIERS 

Type 1 1 2 Differential High-Gain 17 

Type 1 21 Wide-Band Preamplifier 19 

Type 1 22 Low-Level Preamplifier 21 

Type 1 23 Miniature Low-Level Preamplifier 23 

SPECIAL INSTRUMENTS 

Type 1 24 Television Adaptor 27 

Type 1 30 L,C Meter . . 29 

Type 160-Series Waveform Generators 31 

Type 1 60A Power Supply 32 

Type 1 61 Pulse Generator 33 

Type 162 Waveform Generator 34 

Type 1 63 Pulse Generator 35 

Type 1 80 Time-Mark Generator 37 

Type 1 81 Time-Mark Generator 39 

Type 190 Constant-Amplitude Generator 41 

CATHODE-RAY OSCILLOSCOPES 

Type 3 1 Portable 45 

Type 3 1 5D Portable 49 

Type 31 5R 3" Rack Mount 52 

Type 360 Indicator 53 

Type 51 5 General Purpose 55 

Type 51 7 A High-Speed Pulse 59 

Type 524AD Television 63 

Type 525 TV Waveform Monitor 67 

Type 530-Series — Oscilloscopes with Plug-In Preamplifiers 

Type 531 DC to 10 MC 71 

Type 535 DC to 1 MC with Delayed Sweep 74 

Type 532 DC to 5 MC 77 

Type 540-Series — Oscilloscopes for Fast-Rise Applications 

Type 541 DC to 30 MC 81 

Type 545 DC to 30 MC with Delayed Sweep 84 

Plug-In Preamplifiers for Type 530 and 540 Series 

Type 53/54A Wide-Band DC 87 

Type 53/54B Wide-Band High-Gain 88 

Type 53/54C Dual-Trace 89 

Type 53/54D High-Gain DC Differential 90 

Type 53/54E Low-Level AC Differential 91 

Type 53/54G Wide-Band Differential 92 

Type 53/54K Fast-Rise DC 93 

Type 570 Characteristic-Curve Tracer 95 

ACCESSORIES 99 

GENERAL INFORMATION 107 

SHIPPING WEIGHTS 109 

FIELD OFFICES Ill 



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REFERENCE CHART 

MAIN SPECIFICATIONS of TEKTRONIX OSCILLOSCOPES 
for Convenience in Making Preliminary Comparisons 

Oscilloscopes with Plug-In Preamplifiers 





TYPE 531 
General Purpose 


TYPE 532 
General Purpose 


TYPE 535 
General Purpose 


TYPE 541 
Fast-Rise 


TYPE 545 
Fast-Rise 


Vertical Frequency Response 
(with Type 53/54K Unit) 


dc to 11 mc 


dc to 5 mc 


dc to 11 mc 


dc to 30 mc 


dc to 30 mc 


Calibrated Sweep Range 


0.02 jusec/cm 
to 5 sec/cm 


0.2 /xsec/cm 
to 5 sec/cm 


0.02 /isec/cm 
to 5 sec/cm 


0.02 /xsec/cm 
to 5 sec/cm 


0.02 /isec/cm 
to 5 sec/cm 


Sweep Magnifier 


5x 


5x 


5x 


5x 


5x 


Sweep Delay 


None 


None 


1 jusec to 0.1 sec 


None 


1 jusec to 0.1 sec 


Accelerating Potential 


10 kv 


4 kv 


10 kv 


10 kv 


10 kv 


Price (without plug-in units! 


$995 


$825 


$1300 


$1145 


$1450 


Complete Specifications in 

Catalog 14 


Page 71 


Page 77 


Page 74 


Page 81 


Page 84 



Plug-In Preamplifiers for Type 530-Series and Type 540-Series Oscilloscopes 






TYPE 53/54A 

Wide-Band 

DC 


TYPE 53/54B 
Wide-Band 
High-Gain 


TYPE 53/54C 

Dual-Trace 

DC 


TYPE 53/54D 

High-Gain DC 

Differential 


TYPE 53/54E 

Low-Level AC 

Differential 


TYPE 53/54G 

Wide-Band DC 

Differential 


TYPE 53/54K 

Fast-Rise 

DC 


Risetime of Combina- 
tion — plugged into 
Types 541, 545 


0.018 xisec 


0.018 fisec 


0.01 5 fisec 


0.18 fisec 


6 fisec 


0.018 fisec 


0.012 fisec 


Types 531, 535 


0.035 /usee 


0.035 fisec 


0.035 /usee 


0.18 fisec 


6 fisec 


0.035 /isec 


0.031 fisec 


Type 532 


0.07 //sec 


0.07 fisec 


0.07 fisec 


0.18 fisec 


6 usee 


0.07 fisec 


0.07 jusec 


Passband of Combin- 
ation — plugged into 
Types 541, 545 


dc to 20 mc 


*2 c to 12 mc 
dc to 20 mc 


dc to 24 mc 


dc to 2 mc 


0.06 cycles 
to 60 kc 


dc to 20 mc 


dc to 30 mc 


Types 531, 535 


dc to 10 mc 


* 2 c to 9 mc 
dc to 10 mc 


dc to 10 mc 


dc to 2 mc 


0.06 cycles 
to 60 kc 


dc to 10 mc 


dc to 11 mc 


Type 532 


dc to 5 mc 


2 c to 5 mc 
dc to 5 mc 


dc to 5 mc 


dc to 2 mc 


0.06 cycles 
to 60 kc 


dc to 5 mc 


dc to 5 mc 


Calibrated Sensitivity 
ac coupled 


0.05 v/cm 
to 50 v/cm 


*5 my/cm to 
50 v/cm 


0.05 v/cm 
to 50 v/cm 


1 mv/cm to 
50 v/cm 


50 fiy/ 'cm to 
1 mv/cm 


0.05 v/cm 

to 50 v/cm 


0.05 v/cm 
to 50 v/cm 


dc coupled 


0.05 v/cm 
to 50 v/cm 


0.05 v/cm 
to 50 v/cm 


0.05 v/cm 
to 50 v/cm 


1 mv/cm to 
50 v/cm 




0.05 v/cm 
to 50 v/cm 


0.05 v/cm 
to 50 v/cm 


Input Capacitance 


47 fiftf 


47 fifii 


20 fiftf 


47 fifii 


50 fifii 


47 fifif 


20 fifii 


Price 


$85 


$125 


$275 


$145 


$165 


$175 


$125 


Complete Specifica- 
tions in 
Catalog 14 


Page 87 


Page 88 


Page 89 


Page 90 


Page 91 


Page 92 


Page 93 



Oscilloscopes Without Plug-In Preamplifiers 






TYPE 310 
3" Portable 


TYPE 315D 
3" Portable 


TYPE 515 
5" Portable 


TYPE 517A 
High-Speed 


TYPE 524AD 
Television 


Risetime 


0.09 fisec 


0.07 fisec 


0.023 ,usec 


0.007 fisec 


0.035 jusec 


Vertical Passband 

ac coupled 


*2 c to 3.5 mc 
2 c to 4 mc 


5 c to 5 mc 


2 c to 1 5 mc 




2 c to 1 mc 


dc coupled 


dc to 4 mc 


dc fo 5 mc 


dc to 15 mc 




dc to 10 mc 


Calibrated Sensitivity 

ac coupled 


*0.01 v/div 
to 50 v/div 


0.01 v/'div 
to 50 v/div 


0.1 v/cm 
to 50 v/cm 


0.05 v/cm 


0.015 v/cm 
to 50 v/cm 


dc coupled 


0.1 v/div 
to 50 v/div 


0.1 v/div 
to 50 v/div 


0.1 v/cm 
to 50 v/cm 




0.15 v/cm 
to 50 v/cm 


Calibrated Sweep Range 


0.5 yiisec/div 
to 0.2 sec/dlv 


0.1 itsec/div 
to 5 sec/div 


0.04 fisec/cm 
to 2 sec/cm 


0.01 /xsec/cm 
to 20 fisec/cm 


0.1 jusec/cm to 
0.01 sec/cm 


Sweep Magnifier 


5x 


5x 


5x 




3x and 1 Ox 


Accelerating Potential 


1.8 kv 


1.8 kv 


4 kv 24 kv 


4 kv 


Price 


$595 


$770 


$750 $3500 


$1180 


Complete Specifications in 

Catalog 14 


Page 45 


Page 49 


Page 55 


Page 59 


Page 63 



* An additional ac-coupled amplifier stage is switched in by use of the AC ONLY positions of the sensitivity selector, somewhat restricting the 
overall high-frequency response. 



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APPLICATIONS GUIDE 

Some of the known applications of Tektronix Instruments are presented 
here, to help guide you in selecting instruments to fit your needs. Your 
Tektronix Field Engineer or Representative can be very helpful in this 
regard. If in doubt, please consult him before ordering. For his location 
and phone number, please refer to the Field Office page in this catalog. 



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BIOPHYSICAL-MEDICAL 
Cardiac Investigation, Diagnosis 
Central Nervous System Research 
Cortical Research 

Neural Activity and Response 

Type 532 Oscilloscope 77 

Type 53/54C Dual-Trace Plug-In Unit 89 

Type 122 Low-Level Preamplifier 21 

Type 53/54D Differential High-Gain Plug-In Unit. 90 

Type 53/54E Low-Level Differential Plug-In Unit. 91 

Stimulation 

Type 160- Series Waveform Generators. ... 31 to 35 

Type 360 Cathode-Ray Indicator 53 

ELECTRONIC 

Circuit Design 

All Tektronix Oscilloscopes 

Type 105 Square- Wave Generator 13 

Type 1 30 L,C Meter 29 

Type 190 Signal Generator 41 

Type 180 Time-Mark Generator 37 

Type 181 Time-Mark Generator 39 

Type 570 Characteristic-Curve Tracer 95 

Computer Design 

Type 530-Series Oscilloscopes 71 to 79 

Type 540-Series Oscilloscopes 81 to 86 

Type 53/54 Plug-In Units 87 to 93 

Type 130 L,C Meter 29 

Computer Servicing 

Type 31 5D Portable Oscilloscope . 49 

Type 310 Portable Oscilloscope 45 

Delay-Line Testing and Design 

Type 535 Oscilloscope 74 

Type 53/54C Dual-Trace Plug-In Unit 89 

Type 545 Oscilloscope 84 

Magnetic Field Investigation 

Type 530-Series Oscilloscopes 71 to 79 

Type 53/54B Wide-Band High-Gain Plug-In Unit. 88 

Type 53/54D Differential High-Gain Plug-In Unit. 90 

Type 53/54E Low-Level Differential Plug-In Unit. 91 



Transistor Development 

Type 517A Oscilloscope 59 

Type 530-Series Oscilloscopes 71 to 79 

Type 53/54G Differential Wide-Band Plug-In Unit 92 

Type 53/54C Dual-Trace Plug-In Unit 89 

TV Receiver Production Testing 

Type 524AD Oscilloscope 63 

Type 104A Square-Wave Generator 11 



GEOPHYSICAL 

Electrical and Mechanical Characteristics of Soils 

Type 532 Oscilloscope 77 

Type 53/54C Dual-Trace Plug-In Unit 89 

Type 53/54D Differential High-Gain Plug-In Unit. 90 

Type 53/54E Low-Level Differential Plug-In Unit. 91 

Type 122 Low-Level Preamplifier 21 

Field Equipment Maintenance 

Type 310 Portable Oscilloscope 45 

Type 31 5D Portable Oscilloscope 49 

INDUSTRIAL 

Die Impact Stress Analysis 

Type 532 Oscilloscope 77 

Type 53/54C Dual-Trace Plug-In Unit 89 

Type 122 Low-Level Preamplifier 21 

Metal Fracture Investigation 

Type 531 Oscilloscope 71 

Type 53/54 Plug-In Units 87 to 93 

Type 160-Series Waveform Generators 31 to 35 

Type 360 Cathode-Ray Indicator 53 

Transient Monitor 

Type 535 Oscilloscope 74 

Type 53/54C Dual-Trace Plug-In Unit 89 

TV Station Use 

Type 525 Waveform Monitor 67 

Type 524AD Oscilloscope 63 

Type 105 Square-Wave Generator 13 

Type 130 L,C Meter 29 

Vibration Analysis 

Type 532 Oscilloscope 77 

Type 53/54 Dual-Trace Plug-In Unit 89 

Type 122 Low-Level Preamplifier 21 



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APPLICATIONS GUIDE 

(Continued) 



INDICATOR SERVICE 

Hydrogen Thyratron Research and Testing 

Type 517A Oscilloscope 59 

Type 530-Series Oscilloscopes 71 to 79 

Type 540-Series Oscilloscopes 81 to 86 

Type 53/54 Plug-In Units 87 to 93 

Input-Output Comparison 

Type 530-Series Oscilloscopes 71 to 79 

Type 53/54C Dual-Trace Plug-In Unit 89 

Type 122 Low-Level Preamplifier 21 

Microwave Generator Modes 

Type 315D Oscilloscope 49 

Type 530-Series Oscilloscopes 71 to 79 

Type 540-Series Oscilloscopes 81 to 86 

Type 53/54 Plug-In Units. 87 to 93 

Missile Check-Out Racks 

Type 540-Series Oscilloscopes 81 to 86 

Type 53/54 Plug-In Units 87 to 93 

Radioactive Decay Energy Spectrum 

Type 541 Oscilloscope 81 

Type 53/54K Fast-Rise Plug-In Unit 93 

Sequence Control 

Type 360 Cathode-Ray Indicator 53 

Sonic-Echo Fault-Locators 

Type 530-Series Oscilloscopes 71 to 79 



Type 53/54 Plug-In Units 87 to 93 

Telemetering Monitor 

Type 360 Cathode-Ray Indicator 53 

Type 31 5R Oscilloscope 52 

Type 530-Series Oscilloscopes 71 to 79 

Type 53/54C Dual-Trace Plug-In Unit 89 

Time-Shared Microwave Systems 

Type 315D Oscilloscope 49 

Type 315D-S1 Oscilloscope 49 

Type 315D-S2 Oscilloscope 49 

Transducers 

Type 532 Oscilloscope 77 

Type 53/54C Dual-Trace Plug-In Unit 89 

Type 122 Low-Level Preamplifier 21 

NUCLEAR 

Alpha Particle Detector Amplification 

Type 122 Low-Level Preamplifier 21 

Energy Spectrum Indicator 

Type 541 Oscilloscope 81 

Type 53/54K Fast-Rise Plug-In Unit 93 

Equipment Design 

Type 530-Series Oscilloscopes 71 to 79 

Type 540-Series Oscilloscopes 81 to 86 

Type 53/54 Plug-In Units 87 to 93 

Type 51 7k Oscilloscope 59 



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SQUARE WAVE GENERATORS 




Square wave testing techniques are recognized 
as providing one of the most efficient means of 
determining electronic circuit response. Precise 
adjustment of frequency compensated attenuator, 
amplifier and filter circuits is reduced to a simple 
procedure. 



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TYPE 104 A SQUARE -WAVE GENERATOR 

and Voltage Calibrator 

terminated by a continuously variable attenuator. Maxi- 
mum output is 5 v peak-to-peak. Impedance varies from 
to 93 ohms depending on attenuator setting. 
„m„<*m«u. ^ Low-Frequency Output— (Voltage Calibrator) The 

0U-cyc!e and 1-kc sguare-wave outputs are continuously 
variable in 9 ranges, 5, 15, 50 mv, 0.15, 0.5, 1.5, 5, 15, 
and 50 volts peak-to-peak. Full-scale calibration is ac- 
curate within 3%, control linear within 1 % of full scale. 
•* Impedance varies from to 10 kilohms depending upon 

^■^N attenuator settings. 

JMf> For calibrating purposes, the Type 1 04A can be in- 

serted between a signal source and the oscilloscope. A 
switch connects either the signal or calibrating waveform 
^^. f *Hk t0 the osc '" osco P e ' permitting accurate amplitude meas- 

«|R urement of any portion of the signal waveform. 

Synchronizing Signal — An oscilloscope synchroniz- 
ing waveform is available at a front-panel binding post. 
Amplitude is 3 v for all frequencies. 

Regulated Power Supply — Electronically-regulated 
'Si *• .— ~» dc su PPlies insure stable operation over power-line vari- 

ations from 105 to 1 25 v and current-demand differ- 
ences. 

-. . _ VACUUM TUBE COMPLEMENT 

Fixed Frequencies 

*- n | ,. 1on . . High-frequency multivibrators 2 6AG7 

50 cycles, 1 kc, 1 00 kc, 1 mc. High-frequency limiter 6AG7 

High-Frequency Ranges High-frequency output amplifier 6AG7 

Low-frequency multivibrator 12AU7 

Risetime— less than 0.02 ^sec. Low-frequency limiter and CF 1 2AU7 

Output Voltage — 5 v maximum in 93-ohm terminated Sync output CF j 

cable - Rectifier . . . .... [ [ ...[ 5V 4 

, . _ Regulator amplifier rSAUA 

Low-Frequency Ranges c • . oauo 

" Series regulator 6AU5 

Risetime — less than 3 usee. Voltage reference OC3 

Output Voltage— to 50 v in 9 calibrated ranges. *«™. M -»■„.« 

y MECHANICAL SPECIFICATIONS 

GENERAL DESCRIPTION Construction— Self-contained, aluminum-alloy chassis 

The Tektronix Type 1 04A Square-Wave Generator is a ^Fin^h '"V. ♦ 

convenient source of four fixed square-wave frequencies. wrink e b' T" a "°d,zed front panel, gray 

Standard frequencies of 50 cycles 1 kc 1 00 kr nnH r.- caDmet - 

1 .c are extremely useful for th'e study of 'low and'high ^r 14 " ^ 9 " ""'< ' 2 " ^e P . 

frequency characteristics of wide-band amplifiers, ad- p„ w d pOUn ° s " 

iustment of frequency-compensated attenuators, and JiT u*^ " °' 21 °" 25 ° "' 50 " 60 

testing filter networks in the laboratory or on the pro- ! . Wa 

duction line. An extra feature permits the low-frequency $195' 

output to be used as an accurate voltage calibrator Fre- ,nC ' UdeS: ^ P93A «"**»*** cable 

quencies other than those listed can be provided to meet ££™ E^ST^n,. 

spec.ahzed requ.rements. 1— Instruction manual 

CHARACTERISTICS Currently Available Extras 

Risetime-High-frequency square waves have a rise- tha^X^l 7 lOoT ^dT ^T^u "%? 

time of less than 0.02 >S ec, making it possible to test tiona. cost ' ' " °* ^ add " 

ampl.f.ers having passbands up to 20 mc. Risetime of D - , 

low-frequency square waves is fess than 3 usee !/! CeS se,ected frequencies are: 

u . . . _ 2 in range of 50 cycles to 10 kc ton 

o„w "T^ ° Ut P u :- The ' ""« °"d 1 00-kc 2 in range of 50 kc to 1 mc. . . . J 2 

outputs ore ova,loble through a matched 93-ohn, coble Prices f.o.b. Portlond (Beaverton), Oregon.' 

Tektronix, Inc. , , 




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TYPE 105 SQUARE-WAVE GENERATOR 



Frequency Range 



Risetime 

Less than 0.02 [xsec into a terminated 93-ohm cable. 
As short as 13 millimicroseconds under suitable con- 
ditions. 



Frequency Range 

25 cycles to 1 mc, continuously variable. 



Frequency Meter 

Direct reading, accurate within 3% of full scale. 



Output Current 

More than 160 ma, peak-to-peak. 



GENERAL DESCRIPTION 

The Tektronix Type 105 Square-Wave Generator pro- 
duces square waves with flat horizontal portions, free of 
overshoot and ringing, over a wide frequency range. 
Square-wave current greater than 160 ma, peak-to- 
peak, available at the output terminal, permits a useable 
voltage swing across very-low impedance loads. Rise- 
time is less than 0.02 /xsec into a terminated 93-ohm 
cable, and is approximately 13 millimicroseconds into a 
52-ohm cable terminated at both ends. 

Testing wide-band amplifiers with a square-wave gen- 
erator and an oscilloscope is a fast, efficient method 
both in the laboratory and in the television station. Such 
characteristics as transient response, bandwidth, and 
phase shift are quickly revealed. For examination of the 
high-frequency response a square wave having a rise- 
time faster than that of the amplifier being tested is re- 
quired. In addition, the test signal must be free of over- 
shoot and ringing. For examination of the low-frequency 
response a square wave having flat horizontal portions 
is required. The Tektronix Type 105 Square-Wave Gen- 
erator provides a suitable signal for both of these tests, 
making it possible to quickly and accurately test ampli- 
fiers, filters, etc., having passbands from a few cycles to 
20 mc. 

For an excellent discussion on the connection between 
bandwidth and frequency response, composition of rise- 
time and other details associated with square wave test- 
ing, see Vol. 18, Radiation Laboratory Series, "Vacuum 
Tube Amplifiers" (McGraw-Hill}. 







CHARACTERISTICS 



Frequency Range — The frequency range is 25 cycles 
to 1 mc, continuously variable, in nine ranges — 100, 250 
cycles, 1, 2.5, 10, 25, 100, 250 kc, and 1 mc. Frequency 
is read directly on a meter accurate within 3% of full 
scale. 

Risetime — Less than 0.02 /xsec into a terminated 93- 
ohm cable; approximately 18 millimicroseconds when 
the 93-ohm cable is terminated at both ends; approxi- 
mately 13 millimicroseconds into a 52-ohm cable termi- 
nated at both ends. For higher output voltages larger 
output impedances can be used, with a corresponding 
increase in risetime. 




Fig. 1. 1 3 -millimicrosecond risetime of the Type 105 displayed on 
0.02 fisec/cm sweep. Generator connected to vertical deflection 
plates of T54P crt, sensitivity 7 v/cm, with 52-ohm cable terminated 
at both ends. 



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TYPE 105 SQUARE-WAVE GENERATOR 




Fig. 2. Sharp leading edge, square corner, and flat top of 1 -mc 
square-wave output of Type 105 displayed on 0.3 jiisec/cm sweep 
Other conditions same as in Fig. 1. 

Output Amplitude — The output voltage is adjust- 
able from 10 to 100 v across the internal 600-ohm load. 
The maximum square-wave current available at the out- 
put is greater than 160 ma (peak-to-peak). With a 75- 
ohm terminated output coaxial cable, the maximum volt- 
age available is approximately 12 volts; with a 93-ohm 
cable, approximately 1 5 v. 

Sync Terminals — Provision is made to furnish an 
output synchronizing signal whose amplitude is indepen- 
dent of the square-wave output-control setting. A sync- 
input terminal permits the square wave to be synchro- 
nized with a frequency standard. 

Regulated Power Supply — Electronically-regulated 
dc supplies insure stable operation over line variations of 

105-125 v, 210-250 v. 

< 

VACUUM TUBE COMPLEMENT 

Multivibrator 2 6CB6 

Shaper amplifier 6AG7 

Driver amplifier 2 6AG7 

Output amplifier 3 6AG7 

Sync input amplifier 6CB6 

Sync coupling diode 6AL5 

Meter amplifier 6CB6 

Limiter and catching diode 6AL5 

Cathode follower voltage regulator 6J6 

Meter amplifier 6AL5 

Sync output CF 6)6 

Voltage reference 5651 

Rectifiers 4 5V4G 

Regulator amplifiers 2 6AU6 

Series regulators 4 6AU5 

MECHANICAL SPECIFICATIONS 

Ventilation — Forced-air ventilation assures safe oper- 
ating temperature. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions— 16 V 2 " high, 10 ft" wide, 14%" deep. 

Weight — 35 V2 pounds. 





Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 250 watts. 

Price $395 

Includes: 1 — P93, 93-ohm 42" coaxial cable 

— B93-R, 93-ohm terminating resistor 
— A510 binding-post adapter 
— A100 clip-lead adapter 
-4^ A. 1—1 instruction manual Jf^/jS* *? 

®* Currently Available Extras 

93-ohm cable and resistor normally furnished. 
If specified on purchase order, 52-ohm cable and re- 
sistor or 75-ohm cable and resistor will be supplied in- 
stead of 93-ohm cable and resistor. . . . no extra charge. 

Recommended Additional Accessories 

When a Type 105 is used to check the transient response 
of the Type 51 3D Vertical Amplifier, the following acces- 
sories should be used to interconnect the two instruments. 

1 — P52, 52-ohm 42" coaxial cable $4.00 

1 — B52-R, 52-ohm terminating resistor 8.50 

1 — B52-L5, 52-ohm "L" pad, 5:1 ratio 8.50 

1_B52-T10, 52-ohm "T" pad, 10:1 ratio 11.50 

A selection of terminating resistors, pads, and coaxial 
cables designed to be used with the Type 105 will be 
found in the Accessory Section of this catalog. Within 
certain technical limits, special terminating resistors and 
pads can be supplied upon request. 

Prices f.o.b. Portland (Beaverton), Oregon. 



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AUXILIARY AMPLIFIERS 




are designed to expond the oreo of application 
of Tektronix oscilloscopes in certain specialized di- 
rections. Frequently it is desirable to increase the 
sensitivity of the oscilloscope amplifier into the 
mv/cm or uv/cm region. Other measurements 
may require that the horizontal deflection circuits 
have the same order of bandwidth or sensitivity 
as the vertical circuits. 



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TYPE 112 AMPLIFIER 




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DC -Coupled Differential Amplifier 

Voltage Gain 

0.5 to 5000, continuously variable. ^ ,^_,-_-^. 

Frequency Response ^ _ Jg 

DC to 2 mc for gain of 166 or less. ^^ o£ W 

DC to 1 mc for gain of 1 66 to 5000. ^ 

Transient Response 

Risetime — 0.2 jusec for gain of 166 or less. ^^ ^^ 

0.4 jusec for gain of 1 66 to 5000. i: ^ * 

^ A % 

Output Voltage 

150 v at high impedance. •/ »„« 

75 v at 8000 ohms. ^^^_^ ^ 

Calibrating Voltage ID 

5 mv to 50 v full scale, continuously variable. 

Time-Marker Input 

Trigger Output © _ 

GENERAL DESCRIPTION 

The Type II 2 is a dc-coupled differential-input ampli- 
fier designed primarily for the amplification of signals CtMh*t+mm A„..~«~ u c ,n i ru 
# _ _ „„„„•* j * ui r ■_ , . Calibrator Accuracy — Full scale calibrations accu- 
to a magnitude suitable for observation on a cathode- rnta w.: t u:„ -*<>/ ,«„f r «i n.. M . m.< t o/ c x n i 

, ,_ . , rate within J / ; control linear within 1 % of full scale, 
ray tube. It is a four-stage balanced push-pull amplifier 

with the input stage shock mounted. Heaters of the first Power Requirements— 1 05 to 125 or 210 to 250 

three stages and all plate circuits are operated on elec- V °' tS ' 50 to 60 GycleS ' 200 wafts " 

tronically-regulated dc supplies to provide stability 

against line-voltage fluctuations. Choice of single-end- VACUUM TUBE COMPLEMENT 

ed or differential input, either dc-coupled or ac-coupled, Amplifiers .... 2 5879 

provides flexibility of connection to circuits under obser- Amplifiers 4 1 2AU6 

vation, and often permits rejection of undesired signal Amplifiers !!!."! 2 6AG7 

pickup * Cathode followers 2 1 2AU6 

The Type 1 1 2 is especially well adapted for use with Voltage regulators 2 12AU7 

Tektronix Type 51 1, 512, 514, and 524 Oscilloscopes. Marker amplifier 6AU6 

The necessary connections at the crt access panel and Constant-current control 2 6CB6 

trigger input of the oscilloscopes are easy to make. Sen- *-al multivibrator 12AU7 

sitivity is increased to 5 mv/cm in oscilloscopes in which Cal diode and output CF 12AU7 

the crt has a basic deflection factor of 25 v/cm ; and to Rectifiers 3 5V4G 

3 mv/cm where the basic deflection factor is approxi- Voltage reference 5651 

mately 15 v/cm. Because characteristics of the Type 1 12 Regulator amplifiers 2 6AU6 

are identical to those of the vertical amplifier of the Tek- Series regulator 6AS7C 

tronix Type 512 oscilloscope, this combination can be 

used where identical characteristics are needed in both MECHANICAL SPECIFICATIONS 

horizontal and vertical axes. For example, for Lissajous Construction— Aluminum-alloy chassis, 

presentations. Finish— Photo-etched anodized panel, gray wrinkle 

cabinet. 

OTHER CHARACTERISTICS Size— 1 5 % " high, 6 % " wide, 2 1 V 2 " deep. 

Deflection Sensitivity— When used with a crt hav- Weight— 32 pounds, 

ing a basic deflection factor of 25 v/cm, the sensitivity is Price $495 

5 mv/cm to 50 v/cm in 9 calibrated Steps. A potenti- Includes: 2— P510A attenuator probes 

ometer fills in between steps, making the sensitivity con- 2— W112R output leads (012007) 

tinuously variable. 1 — W112B output lead (012008) 

- _ 2 — A510 binding-post adapters 

input Impedance — 1 megohm paralleled by 45 fifd. i— instruction manual 

With probe, 10 megohms paralleled by 14 ^f Price f.o.b. Portland (Beaverton), Oregon. 

Tektronix, Inc. 1 7 




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3/56 



TYPE 121 PREAMPLIFIER 




-Band Preamplifier 





Voltage Gain 

0.01 to 100, continuously variable. 

Frequency Response 

5 cycles to 1 2 mc. 

Transient Response 

Less than 0.03-/xsec risetime. 

Maximum Output Voltage 

3 v peak-to-peak in terminated 93-ohm cable. 

GENERAL DESCRIPTION 

The Tektronix Type 121 Wide-Band Preamplifier is a 
self-contained 3-stage ac-coupled amplifier especially 
well suited for increasing the sensitivity of the Type 51 1, 
51 1A, 51 IAD Oscilloscopes and other applications 
where a voltage gain up to 100 is desired. Excellent 
output linearity is achieved on all input signals up to 
0.03 v peak-to-peak. All plate circuits are operated on 
electronically-regulated dc supplies to provide stability 
against line-voltage fluctuations. To minimize the hum 
level, dc voltage is supplied to the heaters of the first 
two amplifier stages. In addition, the first three tubes 
are located on a shock-mounted chassis to minimize mi- 
chrophonic and drift effects. Cathode-follower output 
permits wide separation of preamplifier and oscillo- 
scope. Power is available at the front panel for a cath- 
ode-follower probe. 

CHARACTERISTICS 

Voltage Gain — Continuously variable from 0.01 to 
100 with four fixed calibrated ranges. .. 0.1, 1, 10, 
and 100. When operated as a preamplifier for an oscil- 
loscope into a deflection sensitivity of 0.25 v/cm, the 
Type 121 provides a complete range of sensitivity of 
2.5 mv/cm to 25 v/cm without the use of oscilloscope 
attenuators. 

Frequency Response — Primary emphasis has been 
placed on transient response. Risetime is less than 
0.03 fisec; passband is 5 cycles to 1 2 mc. 

Output Voltage — 3 v peak-to-peak maximum in a 
terminated 93-ohm cable, permitting linear amplification 
of any input signal up to 0.03 v peak-to-peak. Phase in- 
version in the Type 121 results in the positive portion of 
the input signal causing a negative deflection at the out- 
put terminal. Output is via a cathode follower so a long 
separation of the preamplifier and oscilloscope, or other 
instruments, is possible. 

Probe Power — 20-100 v dc plate and 6.3 dc heater 
supplies are available at a front-panel connector for 
cathode- follower probe or special preamplifier use. 

Regulated Power Supplies — Electronically-regu- 
lated dc supplies insure stable operation over line varia- 
tions of 105-125 v. 




Input Impedance — 1 megohm paralleled by ap- 
proximately 20 fifif. 

VACUUM TUBE COMPLEMENT 

First and second stage amplifiers . 2 6CB6 

Cathode follower gain control 6J6 

Third stage amplifier 6AH6 

Cathode follower output 6J6 

Cathode follower voltage regulator 6)6 

Rectifier . . 2 6X4 

Voltage reference 5651 

Comparator 1 2AX7 

Regulator amplifier 6AU6 

Series regulator 2 1 2B4 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions— 5%" wide, 1 1 T / 4 " high, 15" deep. 

Weight — I8V2 pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 80 watts. 

Price $265 

Includes: 1 — P93B output cable 
1 — Instruction manual 

Price f.o.b. Portland (Beaverton), Oregon. 



3/56 



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TYPE 122 PREAMPLIFIER 




Low -level Preamplifier 



Voltage Gain 

High position — approximately 1000. 
Low position — approximately 100. 



Frequency Response 

0.16 cycles to 40 kc maximum. 



Noise Level 

4 jiv rms maximum. 



Output Voltage 



Maximum 20 v (peak-to-peak) 



Input Selection 

Single ended or differential. 





GENERAL DESCRIPTION 

The Tektronix Type 122 Low-Level Preamplifier is a 
compact 3-stage battery-operated amplifier extending 
the usefulness of the oscilloscope into the microvolt re- 
gion. The Type 122 is especially useful in biological re- 
search and other applications requiring the amplification 
of microvolt signals. 

The Type 122 can be used with any dc-coupled oscil- 
loscope, increasing its sensitivity by a factor of either 
1000 or 100. When used with the Tektronix Type 512 
Oscilloscope, sensitivity is increased to 5 juv/cm; with the 
Tektronix Type 360 Indicator, sensitivity is increased to 
50 /xv/cm. If the Type 122 is used with an ac-coupled 
oscilloscope, the overall low-frequency response will be 
limited to that of the oscilloscope. 

Shock mounting, careful bypassing, and use of battery 
heater and plate-supply voltages reduce microphonics, 
noise, and hum to a low level. 

CHARACTERISTICS 

Frequency Response — Maximum passband is 0.16 
cycles to 40 kc, with 5 high-frequency 3-db cutoff points 
. . . 50, 250 cps, 1,10, and 40 kc; and 4 low-frequency 
3-db cutoff points. . .0.2, 0.8, 8, and 80 cycles. Corres- 
ponding low frequency time constants are 1, 0.2, 0.02, 
and 0.002 seconds. High and low-frequency cutoff 
points are controlled by separate switches so a variety of 
frequency response characteristics can be obtained. 




Rejection Ratio — 80 to 100 db for in-phase signals 
from 5 cycles to 40 kc; maximum signal input is 10 v. 

Voltage Gain — A toggle switch selects either a gain 
of 100 or 1000. 

Signal Output — For a maximum signal input of 
0.02 v (peak-to-peak) in high-gain position and 0.2 v 
(peak-to-peak) in low-gain position, maximum signal 
output is 20 v peak-to-peak. The output dc level is ad- 
justable to zero for use on dc oscilloscopes. Output is 
via a cathode follower with impedance approximately 
1000 ohms. 

Input Impedance — With single-ended input, the im- 
pedance is 10 megohms paralleled by approximately 
50 /x/xf. Impedance for differential input is 20 megohms 
paralleled by approximately 50 ttxtf. 

Noise Level — Depending on the setting of the fre- 
quency response controls, the noise level is 1 to 4 micro- 
volts rms. 



3/56 



Tektronix, Inc, 



21 



TYPE 122 PREAMPLIFIER 



VACUUM TUBE COMPLEMENT 

Input amplifier selected 12AX7 

Second stage amplifier selected 12AU7 

Third stage amplifier and CF out selected 12AU7 

MECHANIC AL SPECIFICATIONS 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions— 10%" high, 4V 2 " wide, 7" deep. 

Weight — 5 Vi pounds. 

Power Requirements — Battery powered through a 
standard octal plug: -f 1 35 v at 5 ma, —90 v at 4 ma, 
and 6.3 v at 0.9 amp. 

Type 122 $85 

Includes: 1 — Wl 22 battery cable (012009) 
1 — CON3P input plug 
1 — P93 output cable 
1 — Instruction manual 




Type 122 Rack Mount — fits into standard 19" re- 
lay rack. Type 122 mounted horizontally on a panel 
Vb" thick, with input connector at left side of panel. 
Height, 5V 4 ". 
Type 122 Rack Mount $90 





Type 122 Frame Mount — fits vertically into special 
adapter frame FA160, or can be mounted in an existing 
support. 
Type 1 22 Frame Mount $90 

Currently Available Extras 

Extra long battery cables, similar to Type W122, can 
be ordered as special items. 

Recommended Additional Accessories 

Type FA160 Adapter Frame adapts Type 122 Frame 
Mount to rack mounting. Mounts in standard rack and 
holds four of any combination of Type 1 22 Preamplifiers, 
Type 360 Indicators, and Type 1 60-Series Units. . .$5.00 

Price f.o.b. Portland (Beaverton), Oregon. 



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TYPE 123 PREAMPLIFIER 




!• 




Miniature Low -Level 




Compact 

3 5 / 8 " high, 1 V 2 " wide, 2-3/16" deep. 

Weighs only 10 ounces. 

Voltage Gain 

Accurately set at 100 times. 

Passband 

Within 2% from 15 cycles to 6 kc. 
Within 3 db from 3 cycles to 25 kc. 

Maximum Input Signal 

0.1 v peak-to-peak. 

Hum-Free Low-Level Amplification 

Powered by miniature batteries. 

GENERAL DESCRIPTION 

The Tektronix Type 123 Preamplifier is a compact, 
light-weight, battery-operated amplifier for use in appli- 
cations where a gain of 100 without additional hum sig- 
nal is desired. Passband is 3 cycles to 25 kc. Etched 



wiring, miniature tubes and small batteries are combined 
in a unit about the size of 2 king-size cigarette pack- 
ages. Where reduced high-frequency response is per- 
missible, ground-loop hum pickup can be virtually elim- 
inated by mounting the Type 123 close to the circuit 
under observation. Coaxial uhf connectors permit the 
Type 123 to be connected directly to an oscilloscope or 
other instrument, and at reduced high-frequency re- 
sponse, in a connecting cable, or even for use as a 
probe. Shock-mounted chassis reduces the effects of mi- 
crophonics, shift, and drift. 

Applications of the Type 123 include practically any- 
thing in the audio range; for example, observing hum 
levels, transducer preamplifier, and other low-level ap- 
plications where a gain of 1 00 is desired. 

CHARACTERISTICS 

Voltage Gain — Gain is 100, adjustable with screw- 
driver calibration control. 

Passband — Within 3 db from 3 cycles to 25 kc. 
Within 2% from 15 cycles to 6 kc. 

Batter/ Powered — A small mercury cell supplies the 
filament voltage and a miniature 30 v battery is the 
source of plate voltage. Life of the mercury cell is ap- 
proximately 100 hours. Low plate current, 75 microamps, 
assures plate-supply battery life of more than 100 hours. 

Noise Level — The maximum noise level with the in- 
put grounded is less than 7.5 microvolts, rms. 

Output Signal Level — DC level of output is approxi- 
mately -f- 15 v. 

Maximum Input Signal — Maximum input signal for 
linear amplification is 0.1 v, peak-to-peak. 

Input Impedance — 10 megohms. 

Effective Output Impedance — 31 kilohms. 

Vacuum Tube Complement — Two Type 512AX 
sub-miniature filament-type pentodes. 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy cover and etched-wir- 
ing chassis. 

Finish — Photo-etched anodized front panel. 

Dimensions — 3 5 / 8 " high, 4'/ a " including uhf connec- 
tor; 1 V 2 " wide; 2-3/16" deep, 3 3/ 4 " including uhf con- 
nector. 

Weight — 10 ounces. 

Power Requirements — One 1 .345 v mercury cell and 
one 30 v miniature battery, included with the instrument. 

Price $50 

Includes; 1 — Mercury cell 
1 — B battery 



Price f.o.b. Portland (Beaverton), Oregon. 



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I 








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3/56 



SPECIAL INSTRUMENTS 

Work in some fields of research and development 
requires the use of special instruments in conjunc- 
tion with the cathode-ray oscilloscope. Special 
instruments developed by TEKTRONIX are 
described in this section. 



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TYPE 124 TELEVISION ADAPTOR 



for Triggered Wide-Band Oscilloscopes 



§• 



i 

i 




Line Selection 

Sync separator and delayed trigger circuitry permit 
triggering the oscilloscope at any selected line of 
a field. 



Field Shift 

Push button provides instant shift to corresponding 
line or lines in opposite field. 



Gated Time Markers 

Intensity markers of 1 /xsec, 0.1 /isec, 0.05 /usee and 
0.005 H ( 200 per television line) . 



APPLICATIONS 

The Type 124 adapts any triggered wide-band oscil- 
loscope to the observation of the television composite 
video signal. Greatly increases the usefulness of the 
oscilloscope in television development and maintenance 
work. 



GENERAL DESCRIPTION 

The delayed-trigger output of the Type 124 is con- 
tinuously variable from zero to 25 milliseconds after re- 
ceipt of a vertical sync pulse. By adjusting the delay, 
an oscilloscope can be triggered at the start of any de- 
sired line in a field. Panel push button provides instant 
shift to opposite field. Triggering occurs at half the 
television vertical rate. Duration of the output pulse is 
less than 1 /^sec, and amplitude is 2 v positive. Trigger- 
ing may be accomplished by the composite video signal 
of either polarity, 0.5 v minimum to 20 v maximum, peak 
to peak, or a 60-cycle sine wave. 

The time-marker generator requires a positive gate of 
20 v minimum to 50 v maximum, peak to peak. Markers 
are supplied for the duration of the gate. Time-marker 
intervals are 1 ^sec, 0.1 /xsec, 0.05 /xsec, and 0.005 H 
(200 per television line). Amplitude is continuously 
variable from zero to 30 v. Phase control permits posi- 
tioning the markers on the trace. 

To make use of the time-marker output of the Type 
124, the oscilloscope should have a positive gate output 
and a CRT cathode terminal. 



VACUUM TUBE COMPLEMENT 

Trigger inverter and output CF , 

Sync separator and dc restorer 

Phantastron 

Trigger coupling diode 

Bistable multivibrator 



6BQ7A 

12BZ7 

6BH6 

6AL5 

6U8 




Cathode-coupled amplifier 12BZ7 

Bistable multivibrator 12BZ7 

Time-marker oscillator 6AK5 

Gating CF and pulse shaping amplifier . . . 6BQ7A 

Time-marker output amplifier 6BQ7A 

Rectifier . 6AX5 

Rectifier 6X4 

Regulator amplifiers 2 6AU6 

Regulator series tubes 2 1 2B4 

Voltage reference OA2 

MECHANICAL SPECIFICATIONS 

Ventilation — forced-air cooling. 

Mounting frame — provides secure mounting to the top 
of Tektronix 5" Oscilloscopes. 

Connecting cables — the four connecting cables sup- 
plied with the Type 124 are designed for use with Tek- 
tronix Oscilloscope Types 511, 511 A, 513, 514, and 
514A. Cable extensions will be necessary in many cases 
when the Type 1 24 is used with other triggered wide- 
band oscilloscopes. 

Size— 6% " high, 1 2 % " wide, 12 1/2" deep. 

Weight— 21 lbs. 

Construction — aluminum alloy. 

Finish — photo-etched anodized panel, baked gray 
wrinkle cabinet. 

Power requirements — 105-1 25 v or 21 0-250 v, 50- 
60 cycles, 1 20 watts. 

Price $295 

Includes: 1 — FM1 24 Mounting frame (014003) 
4 — Connecting cables 
1 — Instruction manual 

Price f.o.b. Portland (Beaverton), Oregon. 



3/56 



Tekfronix, Inc. 



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[ 



TYPE 130 L.C METER 




to 




Di reef -Reading Inductance and Capacitance Meter 




Guard Voltage 

Permits measuring an unknown capacitance while 
eliminating the effects of other capacitances from 
the measurements. 

Five Ranges 

Microhenries — to 3, 10, 30, 100, 300. 
Micromicrofarads — to 3, 10, 30, 100, 300. 

Accuracy 

Within 3% of full scale. 

Coarse and Fine Zero Adjust 
Four-Inch Illuminated Meter 

APPLICATIONS 

Saves engineering time in circuit development work 
by providing quick inductance and capacitance readings 
even while circuit changes are being made. Aids in cor- 
rect placement of critical components and leads. 

Guard circuit produces a voltage of the same ampli- 
tude and phase as the voltage at the UNKNOWN ter- 
minals, but isolated from the frequency determining 
portions of the rest of the circuit. This permits separation 
of the capacitance to be measured from other capaci- 
tances and strays. Accurate measurements of direct 



inter-electrode capacitance in vacuum tubes can be 
made with ease. 

The Type 130 can also be used for component testing, 
sorting, and color-code checking on a production basis. 

GENERAL DESCRIPTION 

The unknown value to be measured will determine the 
frequency of the variable oscillator in the Type 130. This 
frequency is beat against a 140-kc fixed oscillator. The 
difference frequency is shaped and counted, causing 
meter deflection proportional to the difference frequen- 
cy. The direct-reading meter is calibrated in microhen- 
ries and micromicrofarads. 

Load Resistance Limits — The following loads will not 
appreciably alter the indication: 

Capacitance, 0.1 megohm shunt. 
Inductance, 20 k shunt, 10 ohms series. 
A table included in the instruction manual provides 
corrections for increased loads. 

VACUUM TUBE COMPLEMENT 

Fixed oscillator 6U8 

Buffer amplifier 6U8 

Variable oscillator 6U8 

Buffer amplifier 6U8 

Mixer , 6BE6 

Bistable multivibrator 6U8 

Guard circuit cathode follower 6BH6 

CF clamp and diode clamp 6BQ7A 

Rectifier 6X4 

Voltage regulator OA2 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, baked gray 
wrinkle cabinet. 

Size— 5" wide, 9" high, 8 Y 2 " deep. 

Weight — 9 lbs. 

Power Requirements — 1 05-1 25 v or 210-250 v, 50- 
60 cycles, 40 watts. 

Price $1 95 

Includes: 1 — P93C probe (01 0003) 
1 — W130R lead (012015) 
1 — W130B lead (012014) 
1 — Instruction manual 

Recommended Additional Accessories 

Type F30 Production Test Fixture. Speeds sorting and 
testing of capacitors and inductors $3.00 

Type S30 Delta Standards, for calibration of Type 130 
L,C Meters $22.00 



Prices f.o.b. Portland (Beaverton), Oregon. 



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3/56 



TYPE 160-SERIES WAVEFORM GENERATOR 




to 




■ Ff) 

/&0 



The Tektronix Type 160-Series produces timed pulses 
of adjustable duration, amplitude and repetition rate, 
providing a convenient and flexible system of sequence 
control. By using several instruments together, complex 
waveform patterns can be obtained. Applications of the 
Type 160-Series are numerous. . .various combinations 
are being used for nerve stimulation in neurophysical 
experiments, timed gating devices for complex equip- 
ment, component testing, biophysical and geophysical 
applications. The Type 360 Indicator unit, described in 
the oscilloscope section, takes the place of an auxiliary 
oscilloscope and can be used to measure the response 
time and nature of the response to an electrical pulse 



generated by the Type 160-Series instruments. 

The Type 1 60A Power Supply will supply power to 
one Type 360 Indicator unit along with a combination 
of four to six generators. The Type 161 or Type 163 
Pulse Generators can be used to gate one or more Type 
162 Waveform Generators, and the Type 162 can be 
used to trigger several Type 161 or Type 163 Pulse 
Generators. By using combinations of the generators, a 
wide variety of waveforms can be produced. 

The Type 160-Series is adaptable to rack mounting by 
means of an adaptor frame. Any combination of four 
instruments can be placed in the frame at any one time. 










Some of the waveform combinations possible with Tektronix Type 160-Series Waveform Generators 



3/56 



Tektronix, Inc. 



31 



TYPE 160-SERIES WAVEFORM GENERATOR 



TYPE 160 A POWER SUPPLY 




Large Load Capacity 

+ 300v dc, unregulated. 

+ 225 v dc, regulated, at 225 milliamps. 

+ 150 v dc, regulated, at 15 milliamps. 

+ 80 v dc, unregulated. 

— 1 70 v dc, regulated, at 1 25 milliamps. 

6.3 v ac, unregulated, at 20 amps. 



Electronic Voltage Regulation 



Four Output Terminals 

Conveniently located at rear of chassis. 



GENERAL DESCRIPTION 

The Tektronix Type 160A Power Supply provides the 
required voltages and currents for one Type 360 Indica- 
tor unit and a combination of four to six generators. As 
many as seven Type 161, or seven Type 162, or five 
Type 1 63, or five Type 360 units can be supplied by one 
Type 160A. 

The currents listed above for the -f- 225 and — 170 
volt supplies are available only with series regulator ex- 
ternal shunt resistors as provided in the individual units. 

The output terminals consist of four octal sockets, con- 
veniently located at the rear of the chassis. Each socket 
is capable of supplying power to two generators. Two 
20-inch 8-conductor inter-unit power cables are sup- 
plied. 

Electronic voltage regulation compensates for line- 
voltage variations between 105 and 125 v, and for cur- 
rent-demand differences of generators connected to the 
power supply. 




c 



VACUUM TUBE COMPLEMENT 

Rectifiers 3 5V4 

Regulator amplifiers 6AU6 

Amplifier and series regulator 6AW8 

Series regulator 6080 

Series regulator 2 1 2B4 

Amplifier and series regulator 6U8 

Voltage reference 5651 

MECHANICAL SPECIFICATIONS 

Ventilation — Forced air cooling. 

Mounting — Adapted to rack mounting by Tektronix 
Type FA160 Mounting Frame. 

Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions— 4 Vs" wide, 1 2 y 4 " high, 1 3 % " deep. 

Weight — 21 pounds. 

Power Requirements — 105-125 or 210-250 v, 50-60 
cycles, 350 watts max. 

Price $140 

Includes: 2 — Wl 60-20 connecting cables (012016) 
1 — Set mounting screws and cup washers 
1 — Instruction manual 

Price f.o.b. Portland (Beaverton), Oregon. 




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I TYPE 160-SERIES WAVEFORM GENERATOR 
I 



to 





TYPE 161 PULSE GENERATOR 



Output Waveforms 

Fixed-amplitude positive gate. 
Variable-amplitude positive or negative pulse. 

Output Characteristics 

Duration — calibrated, continuously variable, 10/j.sec 

to 0.1 sec. 
Delay — calibrated, continuously variable, to 100% 

of triggering sawtooth waveform. 
Risetime — less than 0.5 jusec, overshoot less than 5%. 

Amplitude 

Gate — fixed, 50 v positive, peak-to-peak. 
Pulse — calibrated, continuously variable, to 50 v, 
peak-to-peak. 

Cathode-Follower Outputs 

Trigger Requirements 

Positive pulse, 2-volt peak-to-peak minimum. Nega- 
tive-going positive sawtooth, with a minimum rate 
of change of 15v/sec. Maximum repetition rate, 
50 kc. 

Power Requirements 

— 170 v dc at 17 ma. 
+ 225 v dc at 22 ma. 
6.3 v dc at 1 .1 amps. 



GENERAL DESCRIPTION 

The Tektronix Type 161 Pulse Generator produces 
calibrated rectangular output pulses of adjustable dura- 
tion and amplitude when the required trigger voltage is 
received from an external source. A Tektronix Type 162 
Waveform Generator is an excellent source for either 
the negative-going sawtooth or positive pulse necessary 
to trigger the Type 161. 

When triggered by a negative-going sawtooth, the 
time of occurrence of the output pulse and gate can be 
adjusted to any point throughout the duration of the 
sawtooth. A calibrated control indicates the output de- 
lay as a fraction of the triggering sawtooth duration. 
Pulse and gate width in milliseconds, and pulse ampli- 
tude in volts are also indicated by calibrated controls. 

When a positive pulse is used to trigger the generator, 
the same output waveforms are available, and the delay 
control functions as a triggering-level control. 

Voltages necessary to operate the Type 161 can be 
obtained from a Tektronix Type 1 60A Power Supply. As 
many as seven 161 units can be powered by a single 
Type 1 60A unit. 




VACUUM TUBE COMPLEMENT 

Comparator l 2AU7 

Regenerative amplifier 1 2AT7 

Coupling diode and one-half 

monostable multivibrator 1 2AT7 

Second-half multivibrator and 

positive pulse amplifier 1 2AT7 

Negative pulse amplifier 6J6 

MECHANICAL SPECIFICATIONS 

Mounting — Adapted to rack mounting by the Tek- 
tronix Type FA 160 Mounting Frame. 
Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, etched chassis. 
Dimensions — 4 % " wide, 1 2 % " high, 7V 2 " deep. 
Weight — 5 pounds. 

Price $95 

Includes: 1 — W1 60-10 connecting cable (012017) 
1 — Set mounting screws and cup washers 
1 — Instruction manual 

Price f.o.b. Portland (Beaverton), Oregon. 



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Tektronix, Inc. 



33 



TYPE 160-SERIES WAVEFORM GENERATOR 



TYPE 162 WAVEFORM GENERATOR 



Output Waveforms 

Positive pulse, positive gate, and negative-going saw- 
tooth. 

Output Characteristics 

Repetition Rate — 0.1 cycles to 10 kc for recurrent op- 
eration. 

Duration — pulse, 10 //.sec to 0.05 sec, gate and saw- 
tooth, 100 /isec to 10 sec. 

» 

Amplitude 

Pulse and gate — 50 volts positive from ground. 
Sawtooth — decreases uniformly with time from + 150 
volts to + 20 volts. 

Risetime 

Pulse — 1 fxsec, approximately, minimum. 

Cathode-Follower Outputs 

Trigger Requirements 

Positive pulse — 8 volts peak-to-peak minimum. 

Sine wave — 6 volts rms, frequency between 5 cycles 
and 50 kc. At frequencies below 5 cycles, the pro- 
duct of rms voltage times frequency must exceed 1 0. 

Gate — 8 volts, peak-to-peak minimum. 

Triggering Means 

Externally derived electrical pulse or gate, front-panel 
push button, or automatic recurrent operation. 

Power Requirements 

— 1 70 v dc at 7 ma. 
4- 150 v dc at 1 ma. 
+ 225 v dc at 28 ma. 
6.3 v dc at 1 .7 amps. 

GENERAL DESCRIPTION 

The Tektronix Type 162 Waveform Generator pro- 
vides three types of waveforms of adjustable duration 
and repetition rate: pulse, gate, and sawtooth. Gen- 
eration of the waveform can be initiated by means of an 
externally derived electrical impulse, or by front-panel 
push button. The Tektronix Type 161 or 163 Pulse Gen- 
erator is an excellent source for the triggering signal. 

The output pulse and gate waveforms have an ampli- 
tude of 50 volts with a minimum risetime of approxi- 
mately one microsecond. The sawtooth waveform is a 
positive voltage decreasing uniformly from +150 volts 
to +20 volts. Waveform duration is measured by a 
calibrated control and the shortest pulse duration is ap- 
proximately 1 /xsec. 

The Type 162 is designed to operate as a delay gen- 
erator in conjunction with the Type 161 or Type 163 
Pulse Generator and to supply a sweep voltage for the 
Type 360 Indicator unit. It is useful for initiating chains 
of events electrically, and for controlling the duration of 
their occurrence and repetition rate. When generating 
waveforms recurrently it functions as a stable repetition- 
rate generator. 





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Voltages necessary to operate the Type 162 can be 
obtained from a Type 1 60A Power Supply. As many as 
seven Type 162 units can be powered by a single Type 
160A unit. 

VACUUM TUBE COMPLEMENT 

Regenerative trigger 12AU7 

Trigger amplifier and one-half multivibrator 12AU7 

Multivibrator and pulse and gate shaper . . 12AU7 

Phantastron 6BH6 

Pulse and gate amplifier and sawtooth 

cathode follower 1 2AU7 

Pulse and gate cathode follower and 

catching diode 1 2AU7 

MECHANICAL SPECIFICATIONS 

Mounting — Adapted to rack mounting by Tektronix 
Type FA160 Mounting Frame. 
Construction — Aluminum alloy. 
Dimensions— 4 y 8 " wide, 12%* high, 7Vi" deep. 
Finish — Photo-etched anodized panel, etched chassis. 
Weight — 5 pounds. 

Price $ 95 

Includes: 1 — Wl 60-10 connecting cable (012017) 
1 — Set mounting screws and cup washers 
1 — Instruction manual 

Price f.o.b. Portland (Beaverton), Oregon. 




34 



Tektronix, Inc. 



3/56 



TYPE 160-SERIES WAVEFORM GENERATOR 




TYPE 163 FAST -RISE PULSE GENERATOR 





Output Waveforms 

Variable-amplitude positive pulse. 
Fixed-amplitude positive gate. 

Output Characteristics 

Risetime — less than 0.2 /asec (without load capaci- 
tance) . 

Decay Time — 0.2 //.sec (without load capacitance). 

Overshoot — can be adjusted to zero. 

Duration — calibrated, continuously variable, 1 /.(.see to 
1 0,000 ^sec. 

Delay — calibrated, continuously variable, to 100% 
of triggering sawtooth duration. 

Amplitude 

Pulse — calibrated, continuously variable, to 25 v, 

peak to peak. 
Gate — fixed, 25 v, peak to peak. 

Cathode-Follower Output 

Pulse — from arm of variable cathode resistor. 
Gate — from top of same resistor. 

Trigger Requirements 

Positive pulse, 2 v peak to peak minimum. 
Negative-going sawtooth; must include dc bias suffi- 
cient to keep voltage positive. 

Power Requirements 

^170 v dc at 26 ma.. 
+ 225 v dc at 45 ma. 
6.3 v ac at 3.6 amp. 



GENERAL DESCRIPTION 

The Tektronix Type 163 Pulse Generator produces rec- 
tangular pulses of less than 0.2 jusec risetime when the 
required trigger voltage is received from an external 
source. A Tektronix Type 162 Waveform Generator is an 
excellent source for either the negative-going sawtooth 
or positive pulse necessary to trigger the Type 163. 

When triggered by a sawtooth voltage the time of oc- 
currence of the output pulse and gate can be adjusted to 
any point throughout the duration of the sawtooth. Out- 
put delay is indicated as a fraction of the triggering 
sawtooth duration by a calibrated control. Pulse and 
gate width in microseconds and pulse amplitude in volts 
may be read directly from calibrated controls. 

The Type 163 can be operated up to 50% duty cycle 
at the minimum time setting on any range. Correspond- 
ingly higher duty cycles are obtained at higher multiplier 
control settings. The maximum repetition rate is 500 kc 
when a pulse of 1 -/isec duration is generated. 

Voltages necessary to operate the Type 163 may be 
obtained from a Tektronix Type 1 60A Power Supply. As 
many as five Type 163 units can be powered by a single 
Type 160A unit. 




VACUUM TUBE COMPLEMENT 

Comparator and pulse amplifier 6U8 

Regenerative trigger amplifier 6U8 

Disconnect diode and charge diode 6AL5 

Monostable multivibrator 2 12BY7 

Output cathode follower 6BQ7A 

MECHANICAL SPECIFICATIONS 

Mounting — Adapted to rack mounting by the Tek- 
tronix Type FA160 Mounting Frame. 
Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, etched chassis. 
Dimensions — 4 Vb " wide, 1 2 Y 4 " high, 7V 2 " deep. 
Weight — 5 pounds. 

Price $95 

Includes: 1 — Wl 60-10 connecting coble (012017) 
1 — Set mounting screws and cup washers 
1 — Instruction manual 

Recommended Additional Accessories 

Type FA160 Adaptor Frame adapts Type 160 Series to 
rack mounting. Holds four Type 160-Series Units. .$5.00 
Type FAP160 Blank Panel, 4 ft " x 1 2 y 4 ", covers open- 
ings in frame-mounted sets of Type 160-Series instru- 
ments $3.00 

Prices f.o.b. Portland (Beaverton), Oregon. 



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TYPE 180 TIME-MARK GENERATOR 




Versatile Timing Source 



1 3 Time-Mark Intervals 

Two per decade from 1 ,u,sec to 1 sec, available sep- 
arately or in various combinations as a timing 
comb. 



Three Sine-Wave Frequencies 

5 mc, 10 mc, and 50 mc. 



Six Trigger-Rate Frequencies 

1, 10, 100 cycles, 1, 10, 100 kc. 



Accuracy Within 0.03 % 

Stability of 2 ppm available in Type 180-S1 




GENERAL DESCRIPTION 

The Type 180 Time-Mark Generator is a high-quality 
source of time markers, sine waves and trigger impulses. 
Thirteen time markers, 3 sine-wave frequencies and 6 
trigger-rate frequencies provide instrument versatility for 
countless numbers of applications in the laboratory or on 
the production line. With its frequency accuracy of 
0.03%, the Type 180 is an ideal calibrating source for 
oscilloscope sweeps, oscillators, counters. It can also be 
used as a time-measuring instrument and as a trigger- 
rate generator. Markers can be presented separately or 
mixed into a timing-comb combination. For applications 
requiring a frequency stability of 2 ppm over a 24-hour 
period, the Type 180-S1 is available. 





CHARACTERISTICS 

Time Markers — Time markers occur at intervals of 
1 , 5, 1 0, 50, 1 00, 500 /.sec, 1 , 5, 1 0, 50, 1 00, 500 milli- 
sec, and 1 sec. Markers are available separately and 
simultaneously through pin jacks at 15 to 30 v ampli- 
tude, or mixed into a timing combination through a tog- 
gle-switch arrangement and available at a coaxial con- 
nector at 1 to 3 v. 

Sine Waves— The SIGNAL SELECTOR switch connects 
the sine-wave frequencies of 5 me, 10 mc or 50 mc to 
the output connector. Each sine wave is also available 
at a separate coaxial connector. Output is approximately 
3 volts. 





Timing Comb 



1 -/.isec Marker 



1 -msec Marker 




3/56 



Timing comb consists of 5-^sec, 50-^sec, and 100-jasec markers. 
A Tektronix Type 315D Oscilloscope was used for these photographs. 

Tektronix, Inc. 



37 



TYPE 180 TIME-MARK GENERATOR 



CHARACTERISTICS 
Nominal Voltage, Impedance, and Risetime Values 

AT SIGNAL OUTPUT AT PIN JACKS 


Marker 

1 jtisec 

5 /xsec to 50 /.isec 

1 00 /xsec to 1 sec 


Amplitude 

1 V 
1 V 

3 v 


Impedance 

300 ohms 
600 ohms 
600 ohms 


Risetime 

0.04 ^sec 
0.08 ^sec 
0.3 /isec 


Amplitude 

20 v 
15 v 
30 v 


Impedance 

400 ohms 
400 ohms 
600 ohms 


Trigger Pulses 
1, 10, 100 cycles, 
1, 10 kc 
100 kc 


9 v 
3v 


200 ohms 
200 ohms 


0.2 ^sec 
0.2 /j.sec 




Sine Waves 
5, 10, 50 mc 


(across 52 ohms) 
3 v 


30 ohms 






Trigger-Rate Generator — Trigger-rate frequencies 
of 1, 1 0, 100 cycles, 1 , 1 0, and 1 00 kc are derived from 
the dividing multivibrators. Output is through a front- 
panel coaxial connector. 

Stability — All outputs are derived from a 1-mc crys- 
tal-controlled oscillator with a frequency tolerance of 
about 0.03% and a short-time stability, after initial 
warmup, of about 0.005% per hour. For applications 
requiring greater stability, the Type 180 is available 
with the crystal mounted in a temperature-stabilized 
oven. (The Type 1 80 is then designated Type 180-S1.) 
Stability is within 2 parts per million over a 24-hour 
period. 

Regulated Power Supply — Electronically-regulated 
dc supplies insure stable operation over line variations 
from 105-125 v, 50-60 cycles. 

VACUUM TUBE COMPLEMENT 

Oscillator and buffer 6U8 

Frequency multipliers 3 6AH6 

Cathode follower 1 2AU7 

Clamp and clipper diode 6AL5 

Amplifier and CF 1 2AT7 

Divider multivibrators 2 1 2AT7 

Divider multivibrators 10 12AU7 

Coupling diode and clamp 12 6AL5 

Marker cathode follower 3 1 2AU7 

Marker cathode follower 10 6C4 

Trigger shaper and CF 1 2AU7 



Rectifier 

Series regulator 2 

Series regulator 

Regulator amplifier 3 

Voltage comparator 

Voltage reference 

MECHANICAL SPECIFICATIONS 



6X4 

6AQ5 

6AS7 

6AU6 

12AX7 

5651 



Ventilation — Filtered, forced-air ventilation assures 
safe operating temperature. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized front panel, gray 
wrinkle cabinet. 

Dimensions — 10 Vis" wide, 16y 2 " high, 14%" deep. 

Weight — 37 pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 330 watts. 

Price .. $575 

Includes: 2 — P93 output cables 

1 — A100 clip-lead adapter 
1 — Instruction manual 



Type 180-S1 — The 1-mc crystal is mounted in a 
temperature-stabilized oven. Frequency stability over a 
24-hour period is within 2 parts per million. 

Price $625 

Prices f.o.b. Portland (Beaverton), Oregon. 



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TYPE 181 TIME-MARK GENERATOR 




A Portable, Accurate Time-Mark Source 



Five Time-Mark Intervals 

1, 10, 100, 1000, and 10,000 microseconds, plus 
10-mc sine wave. 



Small Size 

8 3/ 4 " high, 5 % " wide, 1 7 V 2 " deep, 






3/56 



Low Weight 

Only 1 7 V2 pounds. 



VACUUM TUBE COMPLEMENT 
GENERAL DESCRIPTION 

The Type 181 provides accurate markers that can be Oscillator 6AU6 

displayed on an oscilloscope for sweep calibration or Shaper and multi P lier 6AN8 

comparison time measurements. All six outputs are Buffer and am P lifier 6AN8 

available at a common coax connector through use of a Disconnect and limiting diodes 4 6AL5 

selector switch. The five time-markers are also available Frequency dividers » 4 6BQ7A 

separately at front-panel binding posts for convenient Output CF 2 12AU7 

utilization as trigger impulses, or for other purposes. Rectifier 6AX5 

... , Rectifier 6X4 

All outputs are derived from a 1-mc crystal-controlled Voltage reference 5*51 

oscillator with a frequency tolerance of about 0.03% Regulator amplifiers '.'.'.'. 2 6AU6 

and a short time stability, after initial warmup, of about Series regularors 2 ^ 

U.UU5 /o per hour. For applications requiring greater 

stability, a directly interchangable crystal is available. MECHANICAL SPECIFICATIONS 

This plug-in accessory crystal is mounted in a tempera- r ,■ a. 

ture-controlled oven, and provides a stability of 2 parts Construction-Aluminum-alloy chassis. 

per million over a 24-hour period. When this Type Fin.sh— Photo-etched anod.zed panel, gray wrinkle 

/~/-\ioi . ..... cabinet. 

CU181 crystal-oven combmation is installed at the fac- c - v „ ,. c , , „ . , __„ „ 

tory, the instrument is designated Type 181 -SI. w^T? ,ti/ 9 ' ^ w,de ' 171 / 2 dee P- 

Weight — 17y 2 pounds. 

OTHER CHARACTERISTICS Type 1 81 $225 

Includes: 1 — P93 output cable 

Nominal Output Values 1—W130B lead (012014] 

r 1— W130R lead (012015) 

Marker Amplitude Risetime Impedance 1 — Instruction manual 

°!T V nnV aVe '^°!: mS Type 181- SI (Type COl 81 Crystal-oven 

l^e 2v 0.05 ,„ec 80 ohms Combination installed) ... . $245 

lOusec 2v 0.13/isec 80 ohms ^ 

100, usee 2v 0.2 usee 80 ohms Recommended Additional Accessories 

1000/^sec 2v 0.4 ,usec 80 ohms T mio . . , _ „ , 

1 0,000 /.sec 2v 0.4 usee 80 ohms TyP , e C ° 181 Cr y sta| -°^n Combination— A 1-mc 

crystal mounted in a temperature-stabilized oven. Di- 

D An ..i*i*; nn nr u i ,, rectly interchangeable with standard crystal. Plugs into 

Regulation — DC voltages are e ectronica y reau- ■ , . iL T ,„, . a 

l ated y 9 crystal socket of the Type 181 — no wiring changes 

necessary, Provides a frequency stability of 2 ppm over 

Power Requirements — 105 to 125 or 210 to 250 a 24-hour period $27.00 

volts, 50 to 60 cycles, 100 watts. p r i ces f.o.b. Portland (Beaverton), Oregon. 

Tektronix, Inc. 



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I TYPE 190 SIGNAL GENERATOR 
I 



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Constant-Amplitude Signal Generator 




Output Frequency 

Continuously variable from 350 kc to 50 mc in 6 
ranges. Frequency indication accurate within 2%. 

Output Amplitude 

Continuously variable from 4 millivolts to 10 volts 
peak to peak in 10 ranges. Amplitude indication accu- 
rate within 10% of full scale. 

Amplitude Variation 

Output amplitude varies less than 2% from 350 kc to 
30 mc; less than 4% from 30 mc to 50 mc. 

Distortion 

At attenuator settings of 5 volts or lower, less than 
5% total harmonic content; less than 3% above 2 mc. 

Output Impedance 

52 ohms. 



GENERAL DESCRIPTION 

The Tektronix Type 190 Constant-Amplitude Signal 
Generator is designed to supply sine waves of constant 
amplitude for checking the high-frequency response of 
wide-band amplifiers. 

The Type 190 consists of two units and a 36" inter- 
connecting cable. The larger unit contains the power 
supply, oscillator, and the amplitude-indicating circuitry. 
The smaller unit contains the output attenuator and am- 
plitude-sampling full-wave rectifier. 

Peak-to-peak level of the output signal at the attenu- 
ator is indicated on the amplitude meter. Output is main- 
tained at a constant level by the control voltage fed 
back from the sampling full-wave rectifier in the attenu- 
ator unit. This control signal varies the oscillator plate 
voltage through an electronic regulator circuit. 



VACUUM TUBE COMPLEMENT 

Oscillator 6C4 

Meter amplifier ] 2AU7 

Compensating diode 6AL5 

Sampling diode 6AZ5 

Voltage regulator OB2 

Regulator amplifiers 2 6AU6 

Series regulator i 2AU7 

Power rectifier 5Y3G 



MECHANICAL SPECIFICATIONS 

Size— SVi" wide, 1 3 Vi " high, 11" deep. Attenuator 
unit — 2%" x 2V 4 " x 2". Connecting cable — 36" long. 

Weight — 24 pounds. 

Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, baked gray 
wrinkle cabinet. 

Power Requirements — 105-1 25 v, or 210-250 v, 50- 
60 cycles, 100 watts. 



Price 



$275 



Includes; 1 — Attenuator unit 

1 — 36" connecting cable 
1 — Instruction manual 



Price f.o.b. Portland (Beaverton), Oregon. 



3/56 



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CATHODE-RAY OSCILLOSCOPES 

Every Tektronix Oscilloscope is, from its incep- 
tion, considered to be a specialized extension of 
the operator's senses. It is engineered to the high- 
est standards of electronic circuit design, and ar- 
ranged for maximum operator efficiency. Each 
instrument is built to conform to the distinctive 
Tektronix w /ook" as well as to strict standards of 
instrument design and layout. 



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3/56 




TYPE 310 OSCILLOSCOPE 



DC-Coupled Portable Cathode-Ray Oscilloscope 



Designed for Easy Handling 

Small — 10" x 6 3/ 4 " x 17". 
Weighs only 23 V2 pounds. 



I* 



Transient Response 

Risetime — 0.09 fisec. 



Sensitivity 

DC to 4 mc — 0.1 v/div. 

2 cycles to 3.5 mc — 0.01 v/div. 



Sweep Range 

0.1 /xsec/div to 0.6 sec/div. 



Versatile Triggering 

Internal, external, line. . . ac or dc-coupled, and 
AUTOMATIC TRIGGERING. 




GENERAL DESCRIPTION 

The Tektronix Type 310 is fully capable of performing 
much of your laboratory work, yet has the physical char- 
acteristics desirable for work away from your bench. It 
handles easily and fits into tight spots, simplifying field 
maintenance of complex electronic equipment. The high 
performance of the Type 310 can help you speed up 
your field work. . .its low weight and small size can 
ease your equipment handling problem. 

Complete accessibility to tubes and components is 
maintained by a unique step-chassis construction, hinged 
at the rear. Accurate calibration and excellent linearity 
permit reliable quantitative measurements — you read 
time and amplitude directly from the screen. Functional 
panel design and versatile control system contribute to 
operator convenience, making this new oscilloscope an 
easy-to-use field and laboratory instrument. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Vertical Amplifier — Main amplifier 
passband is dc to 4 mc at calibrated sensitivities of 0.1, 
0.2, 0.5, ), 2, 5, 10, 20, 50 v/div. Low-frequency re- 
sponse is limited to 2 cycles when the AC-DC switch is in 
the AC position. An ac-coupled preamplifier switched in 
by the sensitivity control provides three additional cali- 
brated sensitivities of 0.01, 0.02, and 0.05 v/div, at a 







frequency response of 2 cycles to 3.5 mc. A 3-to-l vari- 
able control provides for continuously-variable sensitivity 
from 0.01 v/div to 150 v/div. Vertical amplifier is fac- 
tory-adjusted for optimum transient response. Risetime 
is less than 0.09 jusec. Input impedance is 1 megohm 
paralleled by approximately 40 ppf. 

Calibration Accuracy — An adjustment is provided 
for setting the vertical-amplifier gain. When accurately 
set on any one step, all other steps will be within 3% 
of the panel reading. 

Probe — The vertical sensitivity is reduced by a factor 
of ten by use of the small, insulated, lOx attenuator 
probe furnished with the instrument. The probe presents 
an input impedance of 10 megohms paralleled by ap- 
proximately 1 3 /jLjxi. 

HORIZONTAL DEFLECTION SYSTEM 

Wide Sweep Range — 18 calibrated, fixed sweeps, 
accurate within 3%, are provided. Calibrated sweeps 
are: 0.5, 1, 2, 5, 10, 20, 50, 100, 200, 500 ^sec/div, 
... 1, 2, 5, 10, 20, 50 millisec/div,. . .0.1, 0.2 sec/div. 
A variable uncalibrated control provides a continuous 
sweep range from 0.5 /isec/div to 0.6 sec/div. 

Sweep Magnifier — Sweep magnification is obtain- 
ed by increasing the gain of the sweep-output amplifier 



3/56 



Tektronix, Inc. 



45 



TYPE 310 OSCILLOSCOPE 




by a factor of 5. The center 2-division portion of the 
trace is expanded to 10 divisions. The HORIZONTAL 
POSITION control has sufficient range to display any 
one-fifth of the magnified sweep. The 5x magnifier ap- 
plied to the 0.5-/j.sec/div sweep extends the calibrated 
range to 0.1 /xsec/div. Accuracy of the 5x sweep magni- 
fier is within 3% on all ranges except the 0.5 /xsec/div 
range where accuracy is within 5%. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc-coupled to the control grid of the cathode- 
ray tube. This assures uniform bias for all sweep speeds 
and repetition rates. 

Automatic Triggering — With the control in the 
AUTO position, the sweep will be triggered by any re- 
current incoming signal from 60 cycles to 2 megacycles. 
Signals differing in frequency, amplitude, and shape 
can be observed without readjustment of the triggering 
controls. In the absence of an input signal, the sweep 
is automatically triggered at approximately a 50-cycle 
rate, providing a reference trace on the screen. 

Trigger Selection — A concentric control permits 
triggering from either the positive or negative slopes of 
internal, external, or line-voltage signals; and selection 
of ac or dc-coupling through the triggering circuits, or 
automatic triggering. 

Triggering Level — The TRIGGERING LEVEL control 
selects the amplitude level where triggering occurs. It 
permits triggering the sweep at a selected level on sim- 
ple or complex waveforms. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to produce a one-half division deflec- 
tion. External — a signal of 0.2 v to ±20 v. 

Horizontal Input — A back-panel terminal permits 
use of an external signal to drive the horizontal ampli- 
fier. Sensitivity is 1 .2 v/div. 



OTHER CHARACTERISTICS 

Voltage Calibrator — A square-wave voltage is 
available through a front-panel binding post. Eleven 
fixed voltages — 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 
and 100 volts peak-to-peak — are provided. Accuracy 
is within 3%. Square-wave frequency is about 1 kc. 

Accelerating Potential — 1 .85 kv accelerating po- 
tential, electronically regulated, is applied to the flat- 
faced 3WP2 cathode-ray tube. 

Regulated Power Supply — Electronically-regulated 
dc supplies insure stable operation over line variations 
between 105-125 v, 60 to 800 cycles.. 

Illuminated Graticule — The edge-lighted graticule 
has 8 vertical and 10 horizontal Vi-inch divisions. Illum- 
ination is controlled by a front-panel knob. An appro- 
priate filter is provided to increase contrast when view- 
ing in a brightly-lighted room. 

Hinged Chassis — The Type 310 opens up to permit 
easy accessibility to all tubes and components. 

Front-Panel Light — A jewel light indicates when 
the vertical-sensitivity and sweep-speed controls are set 
in uncalibrated positions. 

VACUUM TUBE COMPLEMENT 

Vertical preamplifier 6AU6 

Pre-amp cathode follower 6BH6 

Vertical input amplifier 2 6AU6 

Driver cathode follower 6BQ7 

Vertical output amplifier 2 6CL6 

Internal trigger cathode follower 6BH6 

Trigger amplifier 6U8 

Trigger shaper 6U8 

Holdoff cathode followers 1 2AT7 

Minus multivibrator 6BH6 

Plus multivibrator y 2 6BQ7 




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TYPE 310 OSCILLOSCOPE 






Unblanking cathode follower y 2 6BQ7 

Disconnect diodes 6AL5 

Sweep generator y 2 6AN8 

Sweep generator cathode follower '/ 2 6AN8 

Horizontal amplifier cathode follower . . . . y 2 6BQ7 

Horizontal output amplifier 6BQ7 

External horizontal input cathode follower. V 2 6BQ7 

Calibrator multivibrator 6AN8 

Calibrator output cathode follower 6BH6 

Voltage reference 5651 

Regulator amplifiers 3 6BH6 

Series regulators 3 1 2B4 

High-voltage oscillator 6AQ5 

High-voltage regulator , 1 2AT7 

High-voltage rectifiers 2 5642 

Cathode-ray tube 3WP2 

MECHANICAL SPECIFICATIONS 

Construction — Self-contained, cabinet and chassis 
made of aluminum alloy. New mechanical techniques 
improve accessibility to components and tubes. 

Finish — Photo-etched anodized front panel, shadow 
blue hammertone finished cabinet. 

Dimensions — 10" high, 6%" wide, 17 long. 

Weight — 23 'A pounds. 

Power Requirements — 105-125 v, 60 to 800 cycles, 
175 watts. 



Type 310 (105-125 v, 60 to 800 cycles) $595 



Includes: 1 — P510A attenuator probe 

1 — A510 binding-post adapter 
1 — Green filter (378509) 
1 — Instruction manual 



Type 310-51 — Operates on 105-125 or 210-250 v, 50 
to 800 cycles. Weight 25 V 2 pounds. 

Price $595 

Currently Available Extras 

P2 crt phosphor normally furnished. 

PI , P7, PI 1 optional . No extra charge 

Recommended Additional Accessories 

FB 310 Fan Base — Provides filtered forced-air ventila- 
tion to assure safe operating temperature when the Type 
310 is being used continuously over long periods, or in 
a hot or limited-ventilation area. The fan base tilts the 
oscilloscope to a convenient viewing angle. For use on 
105-125 v, 60 cycle only $25.00 

FB 310-S1 Fan Base — For use on 210-250 v, 50 to 60 
cycles only $25.00 

Prices f.o.b. Portland (Beaverton), Oregon. 




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TYPE 315D OSCILLOSCOPE 



DC-Coupled Portable Cathode-Ray Oscilloscope 



to 




Passband 

DC-Coupled — dc to 5 mc. 
AC-Coupled — 5 cycles to 5 mc. 



Transient Response 

Risetime — 0.07 /.tsec 



Calibrated Sensitivity 

DC-Coupled — 0.1 v/div to 50 v/div. 
AC-Coupled — 0.01 v/div to 50 v/div. 



Calibrated Sweep Range 

0.1 usec/div to 5 sec/div. 



GENERAL DESCRIPTION 

The Tektronix Type 31 5D combines small size with 
laboratory-oscilloscope capabilities. Wide sweep range 
adapts it to a great many applications, including those 
requiring very slow sweeps. Pulse observation is facili- 
tated by the less than 0.07-/j.sec risetime of the vertical 
amplifier, the 0.25-ju,sec signal delay, and high-speed 
sweeps. Sensitivity and sweeps are calibrated for ac- 
curate amplitude and time readings directly from the 
screen. A 3" flat-faced cathode-ray tube displays a 
sharp image of sufficient size for easy interpretation. 
The Type 31 5D is an excellent general-purpose labora- 
tory oscilloscope that is easily transported to temporary 
setups and remote installations. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Vertical Amplifier — A seven-position 
vertical-input switch covers the calibrated ranges of 
0.01, 0.1, 1, 10 v/div ac-coupled and 0.1, 1, 10 v/div 
dc-coupled. AC-coupled passband is 5 cycles to 5 mc, 
dc-coupled passband is dc to 5 mc. Multipliers of 1, 2, 
and 5 provide 9 calibrated dc-coupled and 12 calibrat- 
ed ac-coupled ranges. Continuously variable sensitivity 
from 0.01 v/div to 1 00 v/div is provided by a 10-to-l 
variable control. The vertical amplifier is factory adjust- 
ed for optimum transient response. Risetime is less than 



TtPl 3)5 CATMODf »*r OSCIIIOSCOM 




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0.07 jasec and input impedance is 1 megohm paralleled 
by approximately 35 /x^f. 

Calibration Accuracy — A front-panel screwdriver 
adjustment sets the vertical amplitude calibration. When 
accurately set on any one range, all other steps will fall 
within 3% of the panel reading. 

Probe — The vertical sensitivity is reduced by a factor 
of ten by use of the small, insulated lOx attenuator 
probe furnished with the instrument. The probe presents 
an input impedance of 10 megohms paralleled by ap- 
proximately 13 [X{J.1. 

Signal-Delay Network — Delays vertical signal 
0.25 jtisec. Permits observation of the waveform that 
triggers the sweep. 

HORIZONTAL DEFLECTION SYSTEM 

Wide Sweep Range — An 8-position range switch 
and a 1,2, 5, multiplier switch provide 24 calibrated 
time bases, 3 per decade, from 0.1 /xsec/div to 5 sec/div. 
A 10-to-l variable control fills in between steps, pro- 
viding a continuous uncalibrated sweep range from 
0.1 /^sec/div to 10 sec/div. Calibration accuracy is with- 
in 3% on all ranges except 0.1, 0.2, 0.5 /asec/div, 1, 2, 
5 sec/div ranges where the accuracy is within 5%. 



3/56 



Tektronix, Inc. 



49 



TYPE 315D OSCILLOSCOPE 





Sweep Magnifier — Sweep magnification is obtain- 
ed by increasing the gain of the output amplifier by a 
factor of 5. The center 2-division portion of the trace 
is expanded to the left and right of center to 10 divi- 
sions. The HORIZONTAL POSITION control has sufficient 
range to display any one-fifth of the magnified sweep. 
Sweep magnification of 5x is accurate for all settings of 
the sweep-speed controls slower than 0.5 /isec/div. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc-coup!ed to the control grid of the cathode- 
ray tube, assuring uniform bias for all sweep speeds and 
repetition rates. 

DC-Coupled Trigger Amplitude Discriminator — 

The amplitude level on a waveform where triggering 
occurs is selected by the TRIGGER AMPLITUDE DISCRIM- 
INATOR control. The sweep can be triggered at various 
levels on simple or complex waveforms. The flexibility 
of this system permits the sweep to be initiated at any 
point on the positive or negative portion of the negative- 
going slope of a sine wave, as well as any point on the 
positive-going slope. 

Trigger Selector — A ten-position switch permits se- 
lection of the positive or negative-going waveform por- 
tion to trigger the sweep, either from the signal under 
observation or from an external source; and use of either 
a fast or slow-rise waveform for a trigger. Selection of 
either the positive or negative-going portion of the line- 
voltage waveform is also available. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to produce a one-half division deflec- 
tion. External — a signal of 0.2 v to ±20 v. 



OTHER CHARACTERISTICS 

Voltage Calibrator — A square-wave voltage is 
available through a front-panel uhf connector. Four fix- 
ed voltages — 0.1, 1,10 and 100 volts peak-to-peak — 
are provided. Accuracy is within 3%. Square-wave fre- 
quency is approximately 1 kc. 

Output Waveforms — The sweep sawtooth wave- 
form and -|- GATE voltage of the same time duration as 
the sweep are available at the front panel via cathode 
followers. 

Accelerating Potential — 1.85-kv accelerating po- 
tential, electronically regulated, is applied to the flat- 
faced 3WP2 cathode-ray tube. 

Regulated Power Supply — All dc voltages are 
electronically regulated to insure stable operation over 
line variations from 105 to 125 v. 

Illuminated Graticule — The edge-lighted graticule 
has 8 vertical and 10 horizontal quarter-inch divisions. 
Illumination is controlled by a front-panel knob. An ap- 
propriate filter is provided to increase contrast when 
viewing in a brightly-lighted room. 

VACUUM TUBE COMPLEMENT 

Vertical input preamplifier 6BQ7A 

Preamplifier and cathode follower 6BQ7A 

Vertical amplifier input 6CL6 

Amplifier, delay line driver 6CL6 

Cathode followers 6BQ7A 

Vertical output amplifiers 4 12BY7 

Trigger phase inverter 12AT7 



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TYPE 31 5D OSCILLOSCOPE 




to 





Trigger shaper multivibrator 6U8 

Trigger amplifier 6BQ7A 

Trigger CF and holdoff CF 6BQ7A 

Clamp diode and trigger holdoff 1 2AT7 

Unblanking CF and buffer CF 6BQ7A 

Cascode multivibrators 2 6BQ7A 

Multi reverting CF and constant current tube 1 2AT7 

Gate out CF and sweep clamping CF 6U8 

Disconnect diodes 6AL5 

Sweep generator 6AK6 

Sweep out CF and sweep position CF 6BQ7A 

Driver CF and sawtooth out CF 6BQ7A 

Sweep amplifier and sweep out CF 2 6BQ7A 

Cal multivibrator 1 2AU7 

Cal clipper and output CF 1 2AT7 

Voltage reference 5651 

Regulator amplifiers 4 6AU6 

Series regulators 2 1 2B4 

Series regulator 6AS5 

Series regulator 6080 

High-voltage oscillator 6AQ5 

High-voltage regulator 1 2AT7 

High-voltage rectifiers 2 5642 

Cathode-ray tube 3WP2 

MECHANICAL SPECIFICATIONS 

Construction — Self-contained, chassis and cabinet 
made of aluminum alloy. 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperature. 

Finish — Photo-etched anodized front panel, gray 
wrinkle cabinet. 

Dimensions— 12%" high, 8%" wide, 15 7 / 8 " deep. 

Maximum depth including knobs and air filter, 18 V 4 ". 

Weight — 36 pounds. 



Power Requirements — 105-125 or 210-250 volts, 50- 
60 cycles, 375 watts. The ability of the Type 315D to 
operate on power-line frequencies up to 800 cycles is 
limited only by the type of ventilating fan used. The 
Type 315D is furnished with a shaded-pole ac ventilat- 
ing fan motor to be used on 50 to 60 cycle ac only. This 
fan motor has the advantage of being quieter and re- 
quiring very little maintenance. For operation on power- 
line frequencies of 50 to 800 cycles, a dc ventilating fan 
motor and selenium rectifier are used in place of the 
shaded-pole ac motor. The Type 315D then carries the 
additional designation of SI. When the Type 31 5D is 
ordered for use on power-line frequencies from 50 to 
800 cycles (designated Type 315D-S1 ), it must be stat- 
ed on the order. 



Type 31 5D Cathode-Ray Oscilloscope — For use on 

1 05- 125 or 21 0-250 v, 50-60 cycles only .... $770 

Includes: 1 — P510A attenuator probe 

2 — A510 binding-post adapters 
1 — F310-5 green filter (378505) 
1 — Instruction manual 

Type 315D-S1 Cathode-Ray Oscilloscope — For use 

on 105-125 or 210-250 v, 50-800 cycles $785 

Type 315D-S2 Cathode-Ray Oscilloscope — For use 

in PTM systems. Includes a front-panel controlled trig- 
ger circuit permitting direct, stable triggering from the 
sync pulse group with these general characteristics: 

Rep rate 9 to 1 7 kc ( 1 2 or 24 channels) 

Sync group. .4 pulses, 0.5 /xsec wide, spaced 0.8 ^sec 

Channel pulses 0.5 /xsec wide, spaced 3.85 ftsec 

Type 3 1 5D-S2 $790 

Your inquiries are invited about the availability of this 
instrument for use with PTM systems having general 
characteristics differing from the above. 

Currently Available Extras 



P2 crt phosphor normally furnished. 
PI, P7, PI 1 crt phosphor optional. 



No extra charge 



Recommended Additional Accessories 

MU15 Fan Motor Kit — For converting Type 315D for 
use on 50-800 cycle line frequency (Type 315D-S1 ). 
Contains brackets, selenium rectifier, dc fan motor, 
and fan blade. Price $22.50 

MSI 5 Fan Motor Kit — For converting Type 315D-S1 
for use on 50-60 cycle line frequency (Type 315D). 
Contains brackets, ac fan motor and fan blade. 

Price $7.50 

Prices f.o.b. Portland (Beaverton), Oregon. 



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51 



TYPE 31 5R OSCILLOSCOPE 



Rack- Mounting 3-Inch Oscilloscope 





c 



The Type 31 5R is a mechanically rearranged form of 
the Type 315D, for mounting in five vertical units of a 
standard 19-inch rack. Dimensions are: 18-31/32" 
wide, 8-23/32" high, 15-3/4" rack depth, 17" overall 
depth. 

The cabinet of the Type 31 5R fastens to the rack with 
four mounting screws on each side. The chassis slides 
into the cabinet on two horizontal rails, providing firm 
support over its full length, and permitting easy access 
for servicing by sliding the chassis partly out of the cab- 
inet. The chassis can be secured in place by four screws 



at the front, or by two fasteners at the rear of the instru- 
ment. 

Rear mounted controls and terminals have been relo- 
cated on the front panel. Electrical specifications remain 
unchanged. AM special models of the Type 31 5D are 
available in rack-mount form. 

Type 31 5R $795 

Type 31 5R-S1 $810 

Type 315R-S2 $815 

Prices f.o.b. Portland (Beaverton), Oregon. 






52 



Tektronix, Inc. 



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TYPE 360 INDICATOR 




!• 



Vertical Passband 

DC to 500 kc. 



Calibrated Vertical Sensitivity 

0.05 v/div to 50 v/div. 



Waveform Requirements 

50-v positive unblanking pulse, and a sawtooth of 
either polarity with amplitude from 110 to 1 50 v 
and extreme voltage limits at — 90 v and -(-170 v. 



Power Requirements 

+ 300 v dc unregulated at 20 ma. 
-(-225 v dc regulated at 35 ma. 
— 170 v dc regulated at 23 ma. 
6.3 v ac at 3 amps. 




GENERAL DESCRIPTION 

The Tektronix Type 360 Indicator contains a 3" flat- 
faced crt, accelerating voltage supply, vertical amplifier 
with a sensitivity of 0.05 v/div and a calibrated vertical 
attenuator. It is designed to be powered by a Tektronix 
Type 160 or Type 1 60A Power Supply and to receive its 
sweep and unblanking voltages from a Tektronix Type 
1 62 Waveform Generator or from any Tektronix oscil- 
loscope; it can, however, be operated from any source 
of the proper voltages and waveforms. A Type 360 is 
well adapted to take the place of a bulkier general pur- 
pose oscilloscope in single monitoring applications; or 
several can be used along with Tektronix Type 160 Units 
as building blocks in a complex sequence-control and 
monitoring system. Several Type 360 Indicators can be 
driven by a single Type 162 Unit, and a simple Type 
161 -Type 162 hookup provides calibrated sweep delay. 
For low-level applications a Tektronix Type 122 Pream- 
plifier provides increased sensitivity to 50 microvolts/div. 
A single Type 160A can supply power to five Type 360 
Units, Three Type 360 Units can be powered by a Type 
160 ( predecessor to Type 160A) Power Supply. 




™U5 WENUTT ioll! ,„„„ 








VERTICAL DEFLECTION SYSTEM 



DC-Coupled Amplifier — Frequency response of the 
calibrated vertical amplifier is dc to 500 kc. An AC- DC 
switch is provided to insert a blocking capacitor in the 
input when ac-coupling is desired. 

Calibrated Sensitivity — Four positions . .0.05, 0.5, 
5, and 50 v/div. A variable attenuator fills in between 
steps, making the sensitivity continously variable from 
0.05 v/cm to 500 v/cm. 

Signal Input — A front-panel uhf connector is pro- 
vided for the input signal. Input impedance is 1 megohm 
paralled by by approximatley 40 fx/xi. 

HORIZONTAL DEFLECTION SYSTEM 

Input Waveforms — A sawtooth waveform of either 
polarity can be used to drive the horizontal amplifier. 
The sawtooth waveform can have an overall amplitude 
from 1 1 to 1 50 v with the extreme voltage limits at 
— 90 v and + 1 70 v. A 50-volt positive pulse waveform 
having the same time duration as the sweep waveform 



3/56 



Tektronix, Inc. 



53 



TYPE 360 INDICATOR 



is necessary for unblanking the crt. The Type 1 62 Wave- 
form Generator, any Tektronix oscilloscope, or any other 
source of waveforms at the necessary dc levels is re- 
quired to supply the horizontal deflection system of the 
Type 360 Indicator. 

Horizontal Calibration — A screwdriver adjustment 
provides a means of calibrating the sweep. 

OTHER CHARACTERISTICS 

Cathode-Ray Tube — Accelerating potential of 1.5 
kv is supplied to the 3WP crt. A P2 phosphor is normally 
furnished, but others are available upon request. 

DC-Coupled Unblanking — The external unblanking 
waveform is dc-coupled to the grid of the crt, assuring 
uniform bias for all sweep speeds and repetition rates. 

Illuminated Graticule — An edge-lighted graticule 
is marked in 1 0-horizontal, 8-vertical quarter-inch divi- 
sions. Illumination is controlled by a front-panel knob. 



VACUUM TUBE COMPLEMENT 

Vertical input amplifiers 2 6AU6 

Vertical output amplifiers . . 2 6AU6 



Voltage setting CF and horizontal amplifier 6AN8 

Horizontal feedback amplifier 6AU6 

High-voltage oscillator 6AQ5 

High-voltage regulator 12AT7 

High-voltage rectifiers 2 5642 

Cathode-ray tube 3VVP2 

MECHANICAL SPECIFICATIONS 

Mounting — Adapted to rack mounting by Tektronix 
Type FA160 Mounting Frame. 

Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions— 4 Ve" wide, 1 2 '/ 4 " high, 16" deep. 

Weight — 9 pounds. 

Price $195 

Includes: 1 — P510A attenuator probe 

1 — W160-10 connecting cable (012017) 
1 — Instruction manual 

Currently Available Extras 

P2 crt phosphor normally furnished. 

PI, P7, PI 1 optional No extra charge 

Price f.o.b. Portland (Beaverton), Oregon. 




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3/56 



TYPE 515 OSCILLOSCOPE 




DC-Coupled General Purpose 



H 





Wide Sweep Range 

22 calibrated steps from 0.2 /^sec/cm to 2 sec/cm. 
0.04 /*sec/cm to 6 sec/cm, continuously variable. 
5x magnifier, accurate on all ranges. 

Vertical Sensitivity 

9 calibrated steps from 0.1 v/cm to 50 v/cm. 
0.1 v/cm to 125 v/cm, continuously variable. 

Transient Response — 0.023-/xsec risetime. 

Frequency Response — DC to 1 5 mc. 

(3 db down ±V 2 db at 15 mc) 

Versatile Triggering Circuitry 

Internal, external, line . . . . ac or dc-coupled, auto 
matic triggering, and high-frequency sync. 

Balanced 0.25 /sec Delay Network 



GENERAL DESCRIPTION 

The Tektronix Type 515 is a dc-coupled general-pur- 
pose cathode-ray oscilloscope combining the latest Tek- 
tronix oscilloscope circuitry in a compact moderately- 
priced instrument. Wide sweep range of 0.04 /xsec/cm 
to 6 sec/cm, dc to 15 mc passband, and vertical sensi- 
tivity to 0.1 v/cm qualify the Type 515 for general- 
purpose laboratory work. Reduced size requires less 
bench space and permits its use for many field applica- 
tions. 

Other outstanding features include dc-coupled un- 
blanking, a new Tektronix flat-faced 5" cathode-ray 
tube, and versatile triggering circuitry. Accurate calibra- 
tion of both sweep and vertical amplifier permits reliable 
quantitative measurements directly from the screen. 
Functional panel arrangement and versatile control sys- 
tem makes the Type 515 an easy-to-use oscilloscope for 
the field and laboratory. 



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55 



TYPE 515 OSCILLOSCOPE 



VERTICAL DEFLECTION SYSTEM 

DC-Coupled Vertical Amplifier — The vertical am- 
plifier has a passband of dc to 15 mc for all sensitivities. 
Calibrated sensitivities are 0.1, 0.2, 0.5, 1 , 2, 5, 10, 20, 
and 50 v/cm. A variable uncalibrated attenuator fills in 
between steps, making the sensitivity continuously 
variable from 0.1 v/cm to 125 v/cm. Risetime of the 
amplifier is less than 0.023 /isec. 

Calibration Accuracy — An adjustment is provided 
for setting the vertical-amplifier gain. When accurately 
set on any one step, all other steps will fall within 3% 
of the panel reading. 

Two Signal Inputs — Two uhf signal input connectors 
with more than 60-db isolation are controlled by a four- 
position switch. The INPUT SELECTOR switch selects ac 
or dc-coupling, A blocking capacitor is inserted in the 
AC positions, limiting the low-frequency response to 2 
cycles. 

Input Impedance — 1 megohm paralleled by ap- 
proximately 30 /J-/J.f. 

Probe — The vertical sensitivity is reduced by a factor 
of 10 by use of a lOx attenuator probe supplied with 
the instrument. The probe presents an input impedance 
of 10 megohms paralleled by approximately 13 /</rf. 

Balanced Delay Network — A signal delay of 0.25 
/.<.sec is introduced by the balanced (push-pull) delay 
network. Permits observation of the leading edge of the 
waveform that triggers the sweep. 



HORIZONTAL DEFLECTION SYSTEM 

Calibrated Sweeps — The Type 515 has 22 cali- 
brated fixed sweeps, accurate within 3% of full scale. 
Calibrated sweeps are 0.2, 0.5, 1, 2, 5, 10, 20, 
50 ^.sec/cm. . .0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50 milli- 
sec/cm . . .0.1, 0.2, 0.5, 1, 2 sec/cm. A variable uncali- 
brated control provides a continuously sweep range 
from 0.2 /tsec/cm to 6 sec/cm 

Sweep Magnifier — Twenty-two additional cali- 
brated sweeps are available when the 5x magnifier is 
connected into the sweep circuitry. These sweeps are 
0.04, 0.1, 0.2, 0.4, 1, 2, 4, 1 //.sec/cm .. .0.02, 0.04, 
0.1, 0.2, 0.4, 1, 2, 4 millisec/cm. . .0.02, 0.04, 0.1, 0.2, 
0.4 sec/cm. The center two-centimeter portion of the 
normal sweep is expanded to the left and right of center 
during the magnified display to fill 10 centimeters. The 
HORIZONTAL POSITION control has sufficient range to 
display any one-fifth of the magnified sweep. Accuracy 
of the magnifier is within 3% of full scale on all ranges 
except the 0.04 /^sec/cm range, where the accuracy is 
within 5% of full scale. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc-coupled to the control grid of the crt assuring 
uniform grid bias for all sweep speeds and repetition 
rates. 




i 








Trigger Selection — A concentric control permits trig- 
gering from either the positive or negative slopes of an 
internal, external, or line voltage signal; and selection 
of ac or dc-coupling through the triggering circuits, or 
automatic triggering. 

Automatic Triggering — With the control in AUTO 
position, the sweep will be triggered by any recurrent in- 
coming signal from 60 cycles to 2 megacycles. Signals 
differing in frequency, amplitude, and shape can be ob- 
served without readjustment of the triggering controls. In 
the absence of an input signal, the sweep is automatic- 
ally triggered at approximately a 50-cycle rate, provid- 
ing a reference trace on the screen. 

High-Frequency Sync— When the TRIGGER SELEC- 
TOR switch is in the HF SYNC position, the sweep will 
synchronize with the sine-wave signals in the frequency 
range of 5 mc to better than 20 mc. 

Triggering Level — The TRIGGERING LEVEL control 
selects the amplitude level where triggering occurs. It 
permits triggering the sweep at a selected level on sim- 
ple or complex waveforms. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to cause 2 mm deflection. External 
triggering — a signal of 0.2 v to 100 v. 

Horizontal Input Amplifier — Dc-coupled external 
connection to the sweep amplifier is through a front- 
panel connector. A variable attenuator control makes 
the horizontal input sensitivity continuously variable. 

OTHER CHARACTERISTICS 

Voltage Calibrator — A square-wave voltage is 
available through a front-panel uhf connector. Eleven 
fixed voltages— 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 
and 100 volts peak-to-peak are provided. Accuracy is 
within 3%. Square-wave frequency is about 1 kc. 



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Tektronix, Inc. 



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TYPE 515 OSCILLOSCOPE 



Cathode-Ray Tube — 4-kv accelerating potential is 
applied to a new Tektronix 5" flat-faced precision tube, 
T55P, with a helical post-accelerating anode. A P-2 
phosphor is normally supplied. Other phosphors are 
available upon request. 

Output Waveforms — A positive-gate waveform of 
the same time duration as the sweep, and the positive- 
going sweep sawtooth waveform are available at front- 
panel connectors. 

Regulated Power Supply — Electronic regulation 
compensates for line-voltage variations between 105 
and 125 v or 210 and 250 v, 50 to 60 cycles. 

Illuminated Graticule — An edge- lighted graticule 
is marked in 6 vertical and 10 horizontal centimeter divi- 
sions with 2-millimeter baseline divisions. Illumination 
is controlled by a front-panel knob. 

Warning Indicators for Uncalibrated Settings — 

Separate front-panel neon lights indicate when the vari- 
able vertical-sensitivity and sweep-speed controls are in 
uncalibrated settings. 

VACUUM TUBE COMPLEMENT 

Vertical input CF 2 6AU6 

Input amplifiers 2 1 2BY7 

Amplifier CF 6BQ7A 

Output amplifiers 2 6CL6 

Internal trigger CF 6BQ7A 

Trigger phase inverter 6U8 

Regenerative amplifier 6U8 

Holdoff cathode followers 1 2AT7 

Minus multivibrator and unblanking CF . . . 6AN8 

Plus multivibrator and cathode follower . . . 6BQ7A 

Disconnect diodes 6AL5 

Sweep generator and sweep generator CF. 6AN8 

Positioning CF and feedback CF 6BQ7A 



- • ' - 



Sawtooth out CF and + gate out CF 6BQ7A 

Horizontal output amplifiers 2 6BQ7A 

Calibrator multivibrator 6U8 

Calibrator CF 6BQ7A 

Voltage reference 5651 

Regulator amplifiers 3 6AU6 

Series regulator 6080 

Series regulator 6AU5 

High-voltage oscillator 6AQ5 

High-voltage rectifiers 3 5642 

High-voltage regulator 1 2AT7 

Cathode-ray tube T55P2 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperature. 

Construction — Cabinet and chassis are made of alumi- 
num alloy. 

Finish — Photo-etched anodized panel, shadow blue 
hammertone-finished cabinet. 

Dimensions— 9 3/4" wide, 1 3 ft " high, 21 V 2 " deep. 

Weight — 40 pounds. 

Power Requirements — 105 to 1 25 v or 21 to 250 v, 
50-60 cycles, 275 watts. 

Price $750 

Includes: 1 — P510 attenuator probe-jjf- 

2 — A510 binding-post adapters 
1 — F510-5 green filter (378503) 
1 — Instruction manual 

Currently Available Extras 

P2 crt phosphor normally furnished. 

PI , P7, PI 1 optional No extra charge 

Price f.o.b. Portland (Beaverton), Oregon. 






3/56 



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3/56 



TYPE 51 7A OSCILLOSCOPE 




for High-Speed Pulse Application 





Excellent Transient Response 

7-millimicrosecond risetime. 



Sweep Range 

0.01 ,usec/cm to 20 /xsec/cm. 



Vertical Amplifier Sensitivity 

0.05 v/cm maximum. 



24-kv Accelerating Potential 

Writing Rate — 1 100 cm/^sec. 

Recorded on 35 mm TRI-X film at f 1 .9 with 4.2 to 1 
reduction, developed 26 minutes in D-19 at 68 °F. 
Trace density 0.1 above film fog. 



Sweep-Displacement Error 

Less than 1 % of 8 cm. 



Signal-Displacement Error 

Less than 2% of 2 cm. 



Full 4-cm x 8-cm Deflection 



Highly Mobile 

Indicator unit and power supply mounted on 
Scope-Mobile. 



GENERAL DESCRIPTION 

The Tektronix Type 517A Cathode-Ray Oscilloscope is 
a wide-band .high-voltage instrument for the observation 
and photographic recording of very-fast-rising wave- 
forms having low duty cycle. With its risetime of 7 milli- 
microseconds, 24-kv accelerating potential, and high- 
speed sweeps, the Type 517A is especially well suited 
to single-sweep applications involving transients of very 
short duration. Use of the new Tektronix metallized 
cathode-ray tube, T54PH, increases the maximum verti- 
cal deflection to a full 4 cm and improves the linearity 
of the horizontal sweep. Basic vertical sensitivity of the 
Type 517A is 0.05 volts/cm. 

Both indicator and power-supply units are mounted on 
a Type 500 Scope-Mobile, making the Type 517A a con- 
venient, mobile unit. If desired, the indicator and power- 
supply units can be easily removed from the Scope-Mo- 
bile for bench use. 




VERTICAL DEFLECTION SYSTEM 

Distributed Amplifier — A 5-stage distributed am- 
plifier is used to derive a transient-response risetime of 
7 millimicroseconds. 

Sensitivity — Basic sensitivity is 0.05 v/cm with 24-kv 
accelerating potential. A front-panel variable attenuator 
control can decrease the sensitivity by a factor of 2. 

Input — The input of the vertical amplifier is connected 
through a uhf coaxial connector directly to the 170-ohm 
first-stage grid line. 



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TYPE 51 7A OSCILLOSCOPE 




Arrow indicates 1100cm//tsec writing-rate point on 100-cm damp- 
ed oscillation, displayed on single 0.01 /(sec/cm sweep of Type 517A 
Oscilloscope with T54P11H crt. Recorded on 35-mm TRI-X film at 
f 1 .9 with 4.2 to 1 reduction, developed 26 minutes in D-19 at 68°F. 

Cathode-Follower Probe — To provide higher input 
impedances, a cathode-follower probe and three capaci- 
tive attenuator heads are supplied with the Type 51 7A. 
The input impedance of the probe alone consists of 12 
megohms paralleled by approximately 5 ju.ju.f- Each at- 
tenuator head wilt present a different input capacitance, 
decreasing with higher attenuation ratios. Each attenua- 
tor head is adjustable over a ten-to-one range by means 
of a screwdriver adjustment in the nose of the head, 
making the following sensitivities and attenuator ranges 
available: 



Scope Input 
Probe Body Alone 
Probe with Attenuator I 
Probe with Attenuator II 
Probe with Attenuator III 



Total Attenuation 
at CRT 

1:1 to 2:1 

2:1 to 4:1 

4:1 tO 80:1 

40:1 to 800:1 

400:1 to 8000:1 



Voltage Sensitivity of Type 51 7A 
at 24-KV Accelerating Potential 

0.05 to 0.1 v/cm 

0.1 to 0.2 v/cm 

0.2 to 4 v/cm 
2 to 40 v/cm 

20 to 400 v/cm 

Auxiliary Power — A front-panel socket is provided 
to supply power for a cathode-follower probe or an aux- 
iliary amplifier stage connected close to the circuit under 
observation. 6.3 v dc at 1 amp and 120 v regulated dc 
at 10 ma are available. 

Signal Delay — Approximately 65 millimicroseconds 
of delay cable is incorporated in the vertical amplifier. 
This delay, along with an inherent 55 millimicroseconds 
delay in the amplifier, permits the sweep to start before 
the signal reaches the vertical deflection plates. 

Direct Input CRT — An aperture in the side of the 
cabinet permits direct connection to the crt deflection 
plates for observation of extremely high-speed transients. 




A 45 millimicrosecond pulse, initial risetime one 
millimicrosecond, displayed with a sweep time of 10 
millimicroseconds per centimeter. Note amplifier rise- 
time and freedom from ringing and overshoot. 



HORIZONTAL DEFLECTION SYSTEM 

Calibrated Sweeps — The basic sweep waveform is 
generated by a boot-strap circuit with an inverter stage 
for balanced deflection. Eleven fixed, calibrated sweeps 
accurate within 2% . . . 10, 20, 50, 100, 200, 500 milli- 
microsecond/cm, 1, 2, 5, 10, 20 jusec/cm are available 
at 24-kv accelerating potential; and 5, 10, 25, 50, 100, 
250 millimicrosecond/cm, 0.5, 1, 2.5, 5, 10 ^sec/cm at 
12 kv. 

Trigger Selection — A front-panel switch selects a 
trigger from an observed signal of either polarity, an ex- 
ternal trigger source of either polarity, or the internal 
trigger generator. 

Trigger Requirements — The Type 517A uses a dis- 
tributed amplifier in the trigger circuitry to handle fast- 
rise trigger signals. An internal trigger giving a 2-mm 
deflection will trigger the Type 51 7A. External trigger 
requirements are 0.3 to 1 5 v. 

Trigger-Rate Generator — Internal trigger-rate 
generator is continuously variable from 15 to 15,000 
cycles in three ranges with accuracy within 5% of full 
scale. Two cathode-follower outputs are available. . . 
20 v at 50 ohms internal impedance and 60 v at 200 
ohms internal impedance. Risetime is approximately 
0.1 5 jusec. 

Automatic Duty-Cycle Limiter — The maximum duty 
cycle of the sweep system is automatically limited to 
about 15% to avoid exceeding the dissipation limits of 
some of the sweep circuit components. 




POWER SUPPLY * 

Low Voltage — The low-voltage power supply is sep- 
arate from the indicator unit, supplying power to it by an 
inter-connecting cable. All dc supplies are electronically 
regulated and heaters in the indicator unit are regulated 
by a saturable-reactor method to insure stable operation 
over line-voltage variations from 105 to 125 v. 

High Voltage — Accelerating potentials for the crt 
are obtained from an oil-filled oscillator-type supply, all 




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TYPE 517A OSCILLOSCOPE 




voltages electronically regulated to insure stable opera- 
tion for both load and line changes. A front-panel 
switch on the indicator unit changes the accelerating 
voltage from 24 kv to 12 kv by changing the sampling 
voltage in the regulator circuit. 



OTHFR CHARACTERISTICS 

Amplitude Calibrator — A pulse-type calibrator is 
used in the Type 51 7 A and is available at the front- 
panel through a uhf connector. The output voltage is 
continuously variable from 0.1 5 v to 50 v peak full scale 
in 6 ranges with accuracy within 4% of full scale. Fre- 
quency is approximately 25 kc. 

Horizontal-Position Vernier — In addition to the 
normal horizontal-position control, a vernier control cali- 
brated in millimeters provides accurate measurements 
over a range of 1 cm (24-kv accelerating potential) for 
use in measuring risetimes, etc. 

Metallized Cathode-Ray Tube — The Type 517A 
uses a new Tektronix crt, T54PH. The T54PH is a 5" flat- 
faced metallized precision tube with helical post-acceler- 
ating anode. It provides a full 4-cm x 8-cm viewing area 
when operated at 24-kv accelerating potential. Position 
of the high-voltage connector permits bringing the tube 
face flush with the panel. A PI 1 phosphor is normally 
furnished unless otherwise specified. 

Output Waveforms — In addition to the two trigger- 
rate generator outputs and calibrator output, a + GATE 






UKllONlIt H*.. PQ*11*ND. OHIGOH If U 



waveform of 25 volts amplitude is available. Its dura- 
tion is approximately equal to the sweep being gener- 
ated. Risetime is 0.03 ;u.sec, from a cathode-follower 
source impedance of 200 ohms. 

Illuminated Graticule — An edge-lighted graticule 
is marked in centimeter squares, 4 vertical and 8 hori- 
zontal, for convenience in making time and amplitude 

measurements. Illumination is controlled by a front- 
panel knob. 

VACUUM TUBE COMPLEMENT 

First distributed amplifier 6 6AK5 

Second distributed amplifier 6 6AK5 

Third distributed amplifier 7 6CB6 

Phase inverter stage 3 6CB6 

Driver amplifier 12 6CB6 

Output amplifier 24 6CB6 

Internal trigger coupling 6CB6 

Trigger phase-splitter . . 6J6 

Trigger amplifier 6 6AK5 

Trigger limiter 6AG7 

Trigger switch 6AG7 

Coupling diode 6X4 

Multivibrator 2 6AG7 

Duty-cycle limiter 6AN8 

Sweep clamp 2 6AG7 

Bootstrap cathode followers 2 12BH7 

Decoupling diode 6X4 

Positive sweep out CF 1 2BH7 



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TYPE 517A OSCILLOSCOPE 



Sweep inverter 

Voltage regulator CF 

Negative sweep clamp 

Sweep out dc restorer 

Unblanking amplifiers 2 

Voltage regulator CF 

Unblanking cathode follower 

+ Gate out cathode follower 

Cal multivibrator 

Clipper 

Cal voltage adjust CF 

Cal out CF 

Trigger rate phantastron generator 

Trigger coupling and recharging CF 

Plate catcher 

Blocking oscillator 

Output cathode followers 2 

Astigmatism and probe voltage CF 

Low-voltage rectifiers 4 

Rectifier 

Voltage reference 

Comparator 

Regulator amplifiers 5 

Series regulators 2 

Series regulators 6 

Heater voltage control diode 

Heater-regulator amplifier 

High-voltage rectifiers 5 

High-voltage oscillator 

Regulator amplifier 

Series regulator 2 

High-voltage time delay 



6AG7 

12AU7 

6AL5 

6AL5 

6AG7 

6AS5 

6J6 

6J6 

12AU7 

6J6 

6J6 

6J6 

6BH6 

12AU7 

12AU7 

12AU7 

12AU7 

12AU7 

6X4 

5R4GY 

5651 

12AX7 

6AU6 

6AU5 

6AS7 

2AS-15 

6AU5 

1X2 

6AU5 

12AU7 

6AU5 

6C4 



High-voltage rectifier filament oscillator . . 6AQ5 

Astigmatism and probe power CF 12AU7 

Cathode-ray tube T54P1 1 H 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation assures 
safe operating temperature. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions — Indicator unit: 18%" high, 13" wide, 
27" deep. Power supply unit: 9 s / 8 " high, 13" wide, 
1 9 % " deep. 

V/eight — Indicator unit: 76 pounds. Power supply 
unit: 72 pounds. Scope-Mobile: 42 pounds. 

Power Requirements — 105-1 25 v or 210-250 v, 50-60 
cycles, 1250 watts. 

Type 517A Cathode-Ray Oscilloscope. . . .$3500 




Includes: 



OF 



\ 



<> 



— Type 500 Scope-Mobile 

— P170CF cathode-follower probe 

— B170A step attenuator 

— H510 viewing hood 

— BE510 bezel 

— Instruction manual 

— PI 70 coaxial cable 



Currently Available Extras 

PI 1 phosphor normally furnished. 

PI, P2, P7 optional No extra charge 

Other phosphors can be furnished on special order. 

Price f.o.b. Portland (Beaverton), Oregon. 



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I TYPE 524AP OSCILLOSCOPE 



I* 



U 




Television Cathode -Ray 
Oscilloscope 




Frequency Response 

Normal — dc to 10 mc from 0.15 v/cm to 50 v/cm. 

2 cycles to 10 mc from 15 mv/cm to 50 v/cm. 
Flat — within 1 % from 60 cycles to 5 mc. 
IRE — meets IRE standards for level measurements. 

Transient Response — 0.035-jusec risetime. 

Sweep Range 

Continuously variable, 0.1 /xsec/cm to 0.01 sec/cm. 

Time Markers 

Five markers — 0.05 jusec, 0.1 ^sec, 1.0 /xsec, 200 pips 
per television line, and 40 pips per television line. 



Sweep Delay 

Permits detailed observation of any portion of a 
single television line. 

DC-Coupled Unblanking 

Variable Duty-Cycle Amplitude Calibrator 

GENERAL DESCRIPTION 

The Tektronix Type 524AD Oscilloscope is a self-con- 
tained instrument with the characteristics desirable for 
maintenance and adjustment of television transmitter 
and studio equipment. The Type 524AD will prove it- 



Tektronix, Inc. 



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TYPE 524AD OSCILLOSCOPE 



self invaluable in enabling the engineer to observe any 
portion of the television picture — from complete frames 
to small portions of individual lines. 

Features contributing to the versatility of this oscillo- 
scope include — accurate time markers to facilitate sync- 
pulse timing, normal response of dc to 1 mc, flat re- 
sponse within 1 % from 60 cycles to 5 mc for color-tele- 
vision work, variable-duty-cycle amplitude calibrator, 
and two steps of sweep magnification, 3x and lOx, for 
detailed observations. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Vertical Amplifier — The main vertical 
amplifier has a passband of dc to 10 mc for sensitivities 
from 0.15 v/cm to 50 v/cm. Low-frequency response is 
3 db down at 2 cycles when the AC-DC switch is in the 
AC position. An ac-coupled preamplifier switched in by 
the sensitivity control provides additional sensitivities 
from 0.01 5 v/cm to 0.15 v/cm. A variable attenuator 
control fills in between steps and provides continuously 
variable sensitivity from 0.01 5 v/cm to 50 v/cm. The 
vertical amplifier is factory adjusted for optimum tran- 
sient response. Risetime is less than 0.035 /isec and the 
input impedance is 1 megohm paralleled by approxi- 
mately 45 fxfxi. 

Frequency Response — A switch on the access panel 
selects the desired bandwidth of the vertical amplifier. 
The NORMal position provides a passbcnd of dc to 
10 mc. The FLAT position provides a vertical-amplifier 
response flat within 1 % from 60 cycles to 5 mc. About 
5% overshoot will occur on extremely sharp waveforms 



when the switch is in the FLAT position; however, TV 
signals within the 5 mc passband are not affected. Re- 
sponse of the amplifier meets the IRE standards for level 
measurements when the access-panel switch is in the IRE 
position. EXTernal position provides ac-coupled external 
connections to the vertical-deflection plates, bypassing 
the main vertical amplifier but retaining the function of 
the vertical-position control. 

Two Signal Inputs — Two uhf signal-input connectors 
with more than 50-db isolation are controlled by a front- 
panel switch. Each input can be either ac or dc-coupled 
to the vertical amplifier. 

Probe — The vertical sensitivity is reduced by a factor 
of 10 by use of a lOx attenuator probe supplied with 
the instrument. The probe presents an input impedance 
of 10 megohms paralleled by approximately 15/j.ju.f. 

Delay Network — A 0.25 fisec signal-delay network 
is incorporated in the vertical amplifier to permit obser- 
vation of the waveform that triggers the sweep. 

HORIZONTAL DEFLECTION SYSTEM 

Calibrated Sweeps — The Type 524AD has a con- 
tinuously variable, linear, triggered time base covering 
the range of 0.1 /.(.sec/cm to 0.01 sec/cm in five fixed- 
range steps. Dual sweep-time multiplier dials cover the 
range between steps. Calibration accuracy is within 5%. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc-coupled to the grid of the cathode-ray tube 
assuring uniform bias for all sweep speeds and repeti- 
tion rates. 




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I TYPE 524AD OSCILLOSCOPE 



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U 



Sweep Delay — Detailed observation of any portion 
of the television picture is accomplished by continuous 
sweep delay from to 25 milliseconds. After the de- 
sired delay, the sweep is triggered by one of the line 
sync pulses. The sweep delay is adjustable with a 3- 
turn potentiometer through about 1 '/ 2 fields, and oper- 
ates at the frame rate of 30 cycles so only consecutive 
lines of one field are observed at any time. A field-shift 
button permits switching to the corresponding interlaced 
lines in the other field. 

Sweep Magnifier — Sweep magnification is obtain- 
ed by increasing the drive to the sweep-output amplifier 
by a factor of either 3 or 10. The center portion of the 
sweep is expanded equally to left and right of center. 
The 3-turn horizontal-position control has sufficient 
range to cover the entire magnified sweep. Accuracy is 
within 5%. 

Trigger Selector — Both normal and delayed sweeps 
can be triggered by an external signal of either polarity, 
or internally by either the positive or negative portion 
of the signal under observation, or by the power-line 
frequency. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to produce a one-half centimeter de- 
flection. External — a signal of 0.5 v to 50 v. Composite 
waveform — a signal large enough to produce a 1.5- 
centimeter deflection. 



OTHER CHARACTERISTICS 

Voltage Calibrator — A variable-duty-cycle square- 
wave calibration voltage is continuously variable from 
zero to 50 volts in seven ranges. Full-scale calibration 
is accurate within 3%; variable control is linear within 
1 % of full scale. Square-wave frequency is approxi- 
mately 1 kc, but the frequency will vary somewhat as 
duty cycle is varied to 1 % or 99%. 

Time-Mark Generator — Time markers are inserted 
as intensification pips on the crt trace at time intervals 
of 0.025H, 0.005H, 1 .0 jusec, 0.1 ,usec, and 0.05 jusec. 
Since H is 63.5 ^.sec, 0.025H will give 40 pips per tele- 
vision line and 0.005H will give 200 pips per television 
line. These markers provide a means of accurately tim- 
ing the sync pulses of a composite signal. Pips spaced 
at 40 or 200 per television line are useful for adjusting 
both color and monochrome equipment. 

A phasing control permits markers to be positioned 
on any desired point of the waveform under observation. 

Output Waveforms — Positive and negative-gate 
waveforms of the same time duration as the sweep, and 
the sweep sawtooth waveform are available at front- 
panel connectors. 

Line-Indicating Video — When a picture monitor is 
connected to the uhf connector at the rear of the cabi- 
net, the picture appearing on the monitor will be bright- 
ened during the time of the oscilloscope sweep. This 



technique is useful when it is desired to know what por- 
tion of the picture is being displayed on the oscilloscope. 

60-Cycle Sweep — A 60-cycle sweep with variable 
amplitude and phasing through approximately 150° is 
provided to facilitate bandwidth measurements with a 
video sweep generator. 

Cathode-Ray Tube — A flat-faced 5ABP cathode- 
ray tube with 4-kv electronically-regulated accelerating 
potential is used in the Type 524AD. A P-l phosphor is 
normally supplied although other phosphors are avail- 
able upon request. 

Regulated Power Supply — All dc supplies are 

electronically regulated to insure stable operation over 

line variations between 1 05-1 25 v or 21 0-250 v, 50 to 
60 cycles. 

Illuminated Graticule — An edge-lighted graticule 
is marked in centimeters. Illumination is controlled by a 
front-panel knob. A graticule marked for modulation 
measurements is also supplied with the instrument. 

Probe Power Socket — A front-panel socket will 
provide power for a cathode-follower probe or auxiliary 
amplifier circuitry. 6.3 v ac at 1 amp and 1 20 v regu- 
lated dc at 15 ma are available at the socket. 



VACUUM TUBE COMPLEMENT 

Preamplifier 2 6U8 

Cathode follower 1 2AT7 

Cathode-coupled amplifier 2 6CL6 

Cathode follower 6BQ7A 

Driver 2 6CL6 

Cathode follower, constant-current triode . 6BQ7A 

Output amplifier 6 6AG7 

Voltage regulator 6AS5 

Cal multivibrator 1 2AU7 

Cal clipper amplifier and CF 1 2AT7 

Trigger inverter and clamp diode 6BQ7A 

Sync amplifier 1 2BZ7 

Sync separator and coupling diode 12BZ7 

Phantastron 6BH6 

Trigger delay comparator 1 2BZ7 

Trigger amplifier 6AG7 

Coupling diode 6AL5 

Negative multivibrator 1 2BY7 

Positive multivibrator 1 2BY7 

Gate amplifier and astigmatism CF 12AU7 

Unblanking amplifier 1 2AT7 

Clamp tube 6AG7 

DC restorer 6AL5 

Cathode follower 1 2AT7 

Decoupling diode and CF 1 2AT7 

Feedback amplifier 6U8 

Clamp and CF 1 2AT7 

Sweep-output amplifier 2 6AH6 

Sweep-output cathode follower 6BQ7A 

Voltage reference 5651 



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TYPE 524AD OSCILLOSCOPE 



Regulator amplifier 4 6AU6 

Regulator series tube 2 1 2B4 

Rectifiers 3 6X4 

Voltage-comparator amplifier 1 2AX7 

Regulator series tube 6AS7 

Regulator series tube 6AS5 

Time-mark pulse shaper and CF 6BQ7A 

Marker phase multivibrator 6U8 

Time-mark oscillator 6AK5 

Pulse amplifier 6BQ7A 

High-voltage regulator amplifier 12AU7 

High-voltage oscillator 6AQ5 

High-voltage rectifier 3 5642 

Cathode-ray tube • 5ABP1 

MECHANICAL SPECIFICATIONS 

Construction — Self-contained, cabinet and chassis 
made of aluminum alloy. 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperature. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions — 16" high, 13" wide, 24 Vi " deep. 

Weight — 61 pounds. 



Power Requirements — 1 05- 1 25 v or 2 1 0-250 v, 50-60 
cycles, 500 watts. 

Price $11 80 

Includes: 1 — P510A attenuator probe 

2 — A510 binding-post adapters 

) — TV RMA style graticule (331009) 

1 — H510 viewing hood 

1 — Instruction manual 

Currently Available Extras 

Rack Mounting Add $25 

PI crt phosphor normally furnished. 

P7, PI 1 optional No extra charge 

Recommended Additional Accessories 

Type 500 Scope-Mobile $97.50 

P500CF Cathode-Follower Probe has input impedance 
of 40 megohms paralleled by 4 jujaf and gain of 0.8 to 
0.85. With lOx attenuator head, input impedance is 10 
megohms paralleled by 2 u/j.f. Amplitude distortion is 
less than 3% on undirectional signals up to 5 v. .$64.00 

See Accessory Section of this catalog for 75-ohm co- 
axial cables, pads, and terminating resistors. 

Prices f.o.b. Portland (Beaverton), Oregon. 



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I TYPE 525 TELEVISION WAVEFORM MONITOR 

for Monochrome and Color Telecasters 



(• 



■• 




Frequency Response 

FLAT — within 1 % between 60 cycles and 5 mc. 

LOW PASS — passes stair steps, eliminating high 
frequencies. 

HIGH PASS — passes high frequencies, eliminating stair 
steps. 

IRE — meets IRE standards for level measurements. 

Excellent Linearity 

Insures accurate color signal linearity measurements. 

Automatically-Synchronized Sweeps 

Both field and line rates. 

Keyed Clamp-Type DC Restorer 
Gain Stability Within 1 % 



GENERAL DESCRIPTION 

The Tektronix Type 525 Television Waveform Monitor 
displays the composite video waveform with the preci- 
sion required for all television broadcasting. Exacting 
demands of the color-television broadcaster for an accu- 



rate display of signal linearity, level, and bandwidth 
are fulfilled with the Type 525. 

Special features of the Type 525: Four vertical-ampli- 
fier response characteristics, automatically-synchronized 
sweeps at line or field rate, bridging, or terminating, or 
differential signal inputs, keyed dc restorer, stable gain 
characteristics. Simplicity of controls aids in easy monitor 
operation. 

VERTICAL DEFLECTION SYSTEM 

Frequency Response — A response selector switch 
selects any one of four characteristics: IRE, with high- 
frequency cutoff about 2 mc in accordance with IRE 
standards for level measurements; FLAT, within 1 %, be- 
tween 60 cycles and 5 mc; LOW PASS, passes the stair 
steps but eliminates the high frequencies; HIGH PASS, 
with increase in gain adjustable to 5x, excludes the stair 
steps but passes the high frequencies for linearity tests. 

Sensitivity — The basic sensitivity of the vertical am- 
plifier is 0.015 v/cm. A three-step attenuator, 1 x, 2x, 5x, 
and variable gain control can adjust the waveform to fill 
the graticule. 

Stability — Electronic regulation of all dc power, and 
use of current stabilization in the amplifier, maintains 



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TYPE 525 TELEVISION WAVEFORM MONITOR I 



stability and constant gain. Minimum adjustment of the 
monitor is required after it is once set, Gain stability is 
within 1 % over a ten-hour period. 

Linearity — The vertical amplifier linearity is well 
above the requirements for highly accurate color-tele- 
vision video signal linearity measurements. Signals can 
be expanded to the equivalent of 35 cm, with any 7 cm 
accurately displayed on the screen. 

DC Restorer — A clamp circuit, keyed by a pulse de- 
rived from the sync-separator circuit, restores the dc level 
of the display to the tip of the sync pulse at each line- 
frequency pulse. The restorer can be switched in or out 
as desired. 

Vertical Input Connectors — All input connectors 
are located at the rear of the instrument. The vertical 
deflection system has push-pull input to permit two 
single-ended signals to be applied to the monitor at the 
same time. They can be independently selected, rapidly 
compared, or applied differentially, to cancel out in- 
phase unwanted signals, by a front-panel switch. Each 
input is paralleled with another coaxial connector to 
permit the monitor to bridge or terminate the video cir- 
cuit. The 75-ohm terminating resistors are supplied with 
the instrument. 



HORIZONTAL DE FLECTION SYSTEM 

Sync Separator — A sync-separator circuit receives 
the composite video signal either internally from a point 
on the vertical amplifier, or through an external-trigger 
connector located at the rear of the instrument. 

Field and Line Speeds — The sweep will synchronize 
automatically with either line or field pulses. Sweep fre- 
quencies correspond to 7875 cycles for line and 30 cy- 
cles for field frequencies. A front-panel switch selects 
one or the other sweep frequency through a relay, or 
connects an external circuit to the relay coil for remotely 
selecting one or the other sweep frequency. 

Horizontal Rate, Magnifier — The variable HORI- 
ZONTAL RATE control adjusts the sweep-time rate so 2, 
3, or 4 lines or fields can be displayed at one time. A 
three-position switch selects accurate magnification of 
the sweep by 1 x, 5x, or 25x. Magnification expands the 
portion of the sweep that is centered, equally to right 
and left of screen center. 



OTHER CHARACTERISTICS 

Amplitude Calibrator — The calibrator provides 
pulses with a duty cycle of about 75%, and with ampli- 
tudes between .015 volts and 1.5 volts, peak-to-peak, 
continuously adjustable in four ranges, 0.05, 0.15, 0.5, 
and 1.5 volts. Accuracy is within 2% of full scale on all 
ranges. The continuously-adjustable interpolating con- 
trol is linear within 1 %. 



Cathode-Ray Tube — The T52P, a Tektronix crt, is 
used in the Type 525. The T52P is a precision 5" flat- 
faced tube with a helical post-accelerating anode, pro- 
viding 8 cm of linear vertical deflection. 4-kv acceler- 
ating potential provides a bright trace. PI phosphor is 
provided, although other phosphors are available upon 
request. 

Regulated Power Supply — DC power supplies are 
regulated to maintain constant dc voltages for changes 
in load, and for ac input voltages between 105 and 1 25 
volts, or 210 and 250 volts, 50 to 60 cycles. 

Illuminated Graticule — An edge-illuminated grati- 
cule is marked in percentage, to -f- 100 and — 40. Each 
centimeter division equals 20%. Illumination is con- 
trolled by a front-panel knob. 

External Time Markers — A binding post, located 
at the rear of the instrument, is available for applying 
external time markers to the crt cathode. 

Accessibility — The Type 525 cabinet is designed for 
standard rack mounting. Chassis is attached to the cab- 
inet with a slide-out mounting that permits it to be tilted 
vertically, providing easy access to all components. 

Internal Adjustments — Internal-adjustment con- 
trols, which may require readjustment occasionally, are 
mounted on the left of the chassis near the front, easily 
accessible to the operator from his position in front of 
the instrument by sliding the monitor partly out of the 
case. 




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■ TYPE 525 TELEVISION WAVEFORM MONITOR 



(• 



I* 




VACUUM TUBE COMPLEMENT 

Vertical input cathode followers ........ 

Vertical phase splitter amplifier 2 

Cathode followers 

Preamplifier 2 

Preamplifier output CF 

Cathode followers 

Cathode followers 

Keyed-clamp diodes 2 

High-pass amplifier 

Cathode followers 

Output amplifier 2 

Internal trigger inverter 

External trigger inverter 

Sync-separator and relay control 

Keying-pulse pickoff and shaper 

Keying-pulse shaper and shaper-splitter . . 



3/56 



Disconnect and clamp diode 6AL5 

Clamp diode and unblanking CF 6BQ7A 

1 2AT7 Phantastron sweep generator 6AS6 

6AU6 Cathode followers 6BQ7A 

6BQ7A Sweep amplifier 6BQ7A 

6CL6 Cathode followers 6BQ7A 

6BQ7A Sweep output amplifier 6BQ7A 

6BQ7A Cal multivibrator and CF 6BQ7A 

6BQ7A Cal multivibrator and amplifier 6BQ7A 

6AL5 Calibrator clamp and CF 6BQ7A 

6BQ7A Voltage reference tube 5651 

6BQ7A Comparator 1 2AT7 

6CL6 Comparator 6U8 

6U8 Regulator amplifier and CF 6U8 

6U8 Series regulator 1 2B4 

6U8 Series regulator 6080 

6U8 High-voltage oscillator 6AQ5 

6BQ7A Voltage reference CF and regulator 12AU7 

Tektronix, Inc. 



69 



TYPE 525 TELEVISION WAVEFORM MONITOR 



Comparator 6U8 

High-voltage rectifiers 3 5642 

Cathode-ray tube T52P1 



MECHANICAL SPECIFICATIONS 

Mounting — Cabinet designed to mount in a relay rack. 
Chassis slides forward out of the cabinet and tilts up for 
convenience in servicing. 

Shock Mount — High-gain stages of the vertical ampli- 
fier are shock mounted to reduce vacuum-tube micro- 
phonics. 

Ventilation — Safe operating temperature is maintain- 
ed by filtered, forced-air ventilation. 

Construction — Aluminum-alloy cabinet and chassis. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 



Dimensions— 8-23/32" high, 19" wide, 20%" rack 
depth, 22y 4 " overall. 

Weight — 54 pounds. 

Power Requirements — 105-125 or 210-250 v, 50-60 
cycles, 380 watts. 

Type 525 • • $1 050 

Includes: 1 — F510-5 green filter (378503) 
2 — 75-ohm termination resistors 
1 — Instruction manual 

Currently Available Extras 

PI crt phosphor normally furnished. 

P7, PI 1 optional No extra charge 



Price f.o.b. Portland ( Beaverton), Oregon 



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I TYPE 530 SERIES OSCILLOSCOPES 



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TYPf 537 CATHODF-RAY OSCILLOSCOPE 



Wide Range of Vertical-Amplifier Characteristics 

Instant convertibility through changing plug-in 
preamplifiers. 

Excellent Transient Response 

Main-unit vertical-amplifier risetime — 0.03 /xsec. 

600,000,000 to 1 Sweep Range 

0.02 /jtsec/cm to 12 sec/cm. 

T0-KV Accelerating Potential 

Brighter display at low repetition rates. 

Horizontal Input Amplifier 

Sensitivity 0.2 v/cm to 20 v/cm, continuously variable. 

DC-Coupled Unblanking 
Balanced Delay Network 
Beam-Position Indicators 



GENERAL DESCRIPTION 

The Type 531 Oscilloscope, with one of the wide- 
band plug-in units, is capable of a much greater range 
of applications than the ordinary general-purpose lab- 
oratory oscilloscope. Characteristics of the basic oscillo- 
scope unit — wide calibrated sweep range (0.02 ^sec/cm 
to 5 sec/cm), flexible triggering facilities, high accel- 
erating potential ( 10 kv) , and wide-band vertical ampli- 
fier — permit its conversion to widely differing applica- 
tions through interchangeable plug-in vertical preampli- 
fiers. Available plug-in units provide for dual-trace, 
high-gain differential, wide-band differential and micro- 
sensitive applications as well as the more usual wide- 
band high-gain applications. New developments in 
plug-in units promise future entry into other application 
areas with this versatile Tektronix oscilloscope. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Output Amplifier — The wide-band 
dc-coupled output amplifier with risetime of 0.03 /xsec is 
factory adjusted for optimum transient response. Cath- 
ode followers are used to drive the cathode-ray tube 
deflection plates. 

The Type 531 vertical deflection system is designed 
for use with any one of the Type 53 or Type 53/54 Plug- 
In Preamplifiers. In order to operate the Type 531, one 
of the preamplifiers must be plugged in. 

Type 531 passband and risetime with the following 
plug-in units: 

Type 53/54A — DC to 1 mc — 0.035 /xsec. 




Type 53/54B — DC to 10 mc — 0.035 /xsec, at 0.05 
v/cm to 50 v/cm. . .2 cycles to 9 mc — 0.04 /xsec, 
at 5 v/cm to 0.05 v/cm. 

Type 53/54C — DC to 1 mc — 0.035 /xsec. 

Type 53/54D — DC to 350 kc at 1 mv/cm, increasing 
to 2 mc at 50 mv/cm. 

Type 53/54E — 0.06 cycles to 60 kc. 

Type 53/54G — DC to 1 mc — 0.035 xisec. 

Type 53/54K — DC to 1 1 mc — 0.03 1 /xsec. 

Please refer to specifications of individual plug-in 
units for sensitivity and other characteristics. Description 
of the plug-in units can be found immediatley following 
the plug-in oscilloscopes. 

Balanced Delay Network — A signal delay of 
0.25 /xsec ts provided by the new balanced (push-pull) 
delay network. Permits observation of the leading edge 
of the waveform that triggers the sweep. 

Direct input to CRT — An aperture in the side of the 
cabinet permits direct connection to the cathode-ray 
tube deflection plates. 

HORIZONTAL DEFLECTION SYSTEM 

A Miller runup type sweep generator is used in the 
Type 531. Inverse feedback in the timing circuitry assures 
excellent linearity. Characteristics of this new circuitry 
make possible the extremely wide sweep range of 
0.02 /xsec/cm to 1 2 sec/cm. 

Calibrated Sweeps — The Type 531 has twenty-four 
calibrated sweeps, accurate within 3%. Main sweep 



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control has eight positions — 0.1, 1, 10, 100 /xsec/cm . . . 
1,10, 100 msec/cm. . .1 sec/cm, Multiplier positions of 
1, 2 and 5 for each of the main sweep steps provide for 
a total of 24 calibrated sweeps, permitting better use of 
the total screen area. The remaining three positions on 
the multiplier switch are 2.5-to-l, 5-to-2 and 1 2-to-5 
variable positions, making the sweep time continuously 
variable from 0.1 /xsec/cm to 12 sec/cm. The 5x mag- 
nifier applied to the 0.1-jitsec/cm sweep extends the 
calibrated sweep range to 0.02 /xsec/cm. 

Sweep Magnifier — Sweep magnification is obtained 
by increasing the gain of the sweep output amplifier by 
a factor of five. The center 2 cm of the trace is expan- 
ded to fill the screen. Any one-fifth of the magnified 
sweep can be displayed on the screen by rotating the 
HORIZONTAL POSITION control. Accurate 5x magnifi- 
cation is obtained on all ranges, providing an additional 
24 calibrated sweeps. 

DC-Coupled Unblanking — DC coupling is provided 
for the unblanking waveform, assuring uniform bias on 
the cathode-ray tube for all sweep times and repetition 
rates. 

Triggering Level — The amplitude level where trig- 
gering occurs can be selected with the TRIGGERING 
LEVEL control. Permits triggering the sweep at a selected 
level on simple or complex waveforms. 

Automatic Triggering — With the TRIGGER MODE 
switch in the AC AUTO position, the sweep will be trig- 
gered by any recurrent incoming signal from 60 cycles 
to 2 megacycles. Signals differing in frequency, ampli- 
tude, and shape can be observed without readjustment 



of the triggering controls. In the absence of an input 
signal the sweep is automatically triggered at about a 
50-cycle rate, providing a reference trace on the crt 
screen. 

High-Frequency Sync — When the TRIGGER MODE 
switch is in the HF SYNC position, the sweep will syn- 
chronize with sine-wave signals in the frequency range 
of about 5 mc to about 30 mc. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to cause 2-mm deflection. External 
triggering — a signal of 0.2 v to 100 v. 

Single-Sweep Recording 



Si 




15-megacycle damped oscillation on single 0.1 -/isec sweep shows 
250-cm//isec writing rate of the Type 531 Oscilloscope with a 
T51P11A crt. Recorded on 35-mm TRI-X film at fl.9 with 4.2 to 1 
reduction, developed 26 minutes in D-19 at 68 G F. 



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TYPE 530 SERIES OSCILLOSCOPES 




!• 




Trigger Selection — The TRIGGER SELECTOR is a 
concentric control. Triggering from either the positive or 
negative slopes of internal, external, or line-voltage sig- 
nals is selected by the outer knob. The inner knob is 
used to select the triggering mode — ac, dc, automatic 
triggering, or high-frequency sync. 

Horizontal Input Amplifier — DC-coupled external 
connection to the sweep-output amplifier is through a 
front-panel connector. Combination of a step attenuator 
and variable attenuator makes the horizontal input sen- 
sitivity continuously variable from 0.2 v/cm to 20 v/cm. 
Passband is dc to 240 kc. 

OTHER CHARACTERISTICS 

Accelerating Potential — 10-kv accelerating poten- 
tial assures bright display when using fast sweeps at low 
repetition rates, and in single-sweep applications. The 
T51PA, a Tektronix cathode-ray tube, is used in the Type 
531. The T51PA is a 5" flat-faced metallized precision 
tube with a helical post-accelerating anode. It provides 
a full 6-cm x 10-cm viewing area — 50% more vertical 
deflection than previous high-voltage tubes. For best re- 
sults over the wide sweep range of the Type 531, a P2 
phosphor is normally furnished with the instrument. 

Regulated Power Supply — Electronic regulation 
compensates for line-voltage variations between 105 
and 125v, and for current-demand differences among 
the plug-in preamplifiers. 

Amplitude Calibrator — A square-wave calibration 
voltage is available through a front-panel uhf connector. 
Eighteen fixed steps — 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100 
millivolts, 0.2, 0.5, 1, 2, 5, 10, 20, 50 and 100 volts 
peak-to-peak are provided. Accuracy is within 3%. 
Square-wave frequency is approximately 1 kc. 

Output Waveforms — A positive-gate voltage of the 
same duration as the sweep and the sweep-sawtooth 
waveform are available at front-panel binding posts via 
cathode followers. The vertical signal is brought out to a 
front-pane! terminal for external applications. 

Beam Position Indicators — Two pairs of indicator 
lights show direction of the electron beam when it is not 
on the screen. 

Illuminated Graticule — An edge-lighted graticule 
is marked in centimeter squares with two-millimeter 
baseline divisions for convenience in making time and 
amplitude measurements. Illumination is controlled by a 
front-panel knob. 

VACUUM TUBE COMPLEMENT 

Vertical amplifiers 2 6CL6 

Vertical amplifier CF 2 6BQ7A 

Vertical amplifiers 2 1 2BY7 

Internal trigger amplifier 6U8 

Internal trigger CF 6BQ7A 

Sweep generator 6CL6 

Sweep generator CF 6BQ7A 

Unblank and holdoff CF 6BQ7A 

Trigger inverter 6BQ7A 



Horizontal position and cal output CF . . . . 6BQ7A 

Horizontal drive CF 6BQ7A 

Horizontal amplifier 6BQ7A 

Horizontal output CF 6BQ7A 

Positive multivibrator and CF 6BQ7A 

Sawtooth and gate CF 6BQ7A 

Multivibrator CF 6BQ7A 

Internal trigger CF 6BQ7A 

External horizontal amplifier 6BQ7A 

Trigger shaper amplifier 6U8 

Internal trigger amplifier 6U8 

Cal multivibrator 6U8 

External horizontal amplifier CF 1 2AU7 

Negative multivibrator 1 2BY7 

Sweep start compensator 6CL6 

Dual-trace trigger amplifier 6AU6 

Disconnect diode 6AL5 

High-voltage oscillator 6AU5 

High-voltage rectifiers 5 5642 

Regulator 1 2AU7 

Voltage reference 5651 

Series regulators 2 6080 

Regulator amplifiers 5 6AU6 

Comparator amplifiers 2 1 2AX7 

Series regulators 4 1 2B4 

Cathode-ray tube T51 P2A 

MECHANICAL SPECIFICATIONS 

Ventilation — Safe operating temperature is main- 
tained by filtered, forced-air ventilation. 

Construction — Aluminum-alloy cabinet and chassis. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions — 24" long, 13" wide, 16" high. 

Weight — 61 V2 pounds. t 

Power Requirements — 105-1 25 v or 210-250 v, 50- 
60 cycles, 475 watts with Type 53/54C unit plugged in. 

Type 531, without plug-in units $995 

Includes: 2 — P510A probes 

2 — A510 binding-post adapters 
1 — W530B test lead (012013) 
1 — F51 0-5 green filter (378503) 
1 — Instruction manual 

Currently Available Extras 

Rack mounting . Price on request 

P2 crt phosphor normally furnished, 

PI, P7, PI 1 optional No extra charge 

Several other phosphors can be furnished on special 
order. 

Recommended Additional Accessories 

P400-Series Low-Capacitance Probes — For complete 
specifications please see Accessory Section. 

For special test accessories for this instrument, please see 
the Test Accessory Section. 

Price f.o.b. Portland (Beaverton), Oregon. 



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TYPE 530 SERIES OSCILLOSCOPES 



TYPE 535 CATHODE-RAY OSCILLOSCOPE 
with Flexible Sweep Delay 



\ 




GENERAL DESCRIPTION 

The Type 535 Cathode-Ray Oscilloscope is essentially the Type 531 plus 
the new Tektronix lockout-reset sweep-delay circuitry. All major specifi- 
cations other than those pertaining to the sweep-delay circuitry are the 
same. Please refer to the Type 531 section for these specifications. 



WIDE-RANGE SWEEP DELAY 

1 sec to 0.1 sec, continuously variable. 

Conventional Operation 

Time-jitter less than 1 part in 20,000. 

Triggered Operation 

Jitter-free at any magnification, even in the pres- 
ence of actual signal jitter. 

Accuracy 

Range accuracy within 1%, incremental accuracy 
within 0.2% of full scale. 

Trigger-Rate Source 

10 cycles to 40 kc, continuously variable. 

ALL OTHER MAJOR SPECIFICATIONS 
SAME AS TYPE 531 



DELAYED SWEEP 

Two modes of operation permit use as a conventional 
delayed sweep, or as a triggered delayed sweep. In con- 
ventional operation the sweep starts immediately after 
the period of delay. In triggered operation the sweep 
does not start until it receives the first signal after the 
period of delay. Time-jitter is less than 1 part in 20,000 
when the delayed sweep is operated in the conventional 
manner. In triggered operation the delayed sweep is 
started by the signal under observation, resulting in a 
steady display even in the presence of jitter in the incom- 
ing signal. 

Sweep delay is accomplished in the Type 535 by use 
of a second sweep called the DELAYING SWEEP. A posi- 
tion on the HORIZONTAL DISPLAY switch provides for 
displaying the delaying sweep on the cathode-ray-tube 
screen. When the delaying sweep is displayed on the 
screen, the main sweep appears upon it as a section of 
increased brightness. With the signal applied to the de- 
laying sweep, the main sweep may be ranged out or in, 
to position its start at the desired point. If the main 
sweep is adjusted to free-run, it will start exactly at this 
point. If it is adjusted for triggered operation, it will not 
start until the first trigger following this point is received. 




c 



A turn of the HORIZONTAL DISPLAY switch returns the 
main sweep to the screen, delayed by the selected 
amount. 

Calibration — A calibrated step control and a ten- 
turn precision control cover the sweep delay continuously 
from 1 microsecond to 0.1 second. Twelve steps — 2, 5, 
10, 20, 50, 100, 200, SOOjusec/cm, 1, 2, 5, and 



Delaying Sweep 



Main Sweep — Delayed 




1 0-/isec/cm delaying sweep dis- 
played on the screen. The 0.2- 
/isec/cm main sweep appears as 
a bright area on the delaying 
sweep, and moves along the trace 
as the delay is adjusted to the 
desired amount. 



The main sweep returned to the 
screen, displaying the fifth pulse 
in the chain on the 0.2-psec/cm 
time base. The start of the main 
sweep was delayed 40 fisec. 




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I TYPE 530 SERIES OSCILLOSCOPES 



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10 msec/cm — are accurate within 1%. Incremental ac- 
curacy of the precision variable control is within 0.2%. 
Delay time can be read either from the screen in time 
per centimeter, or from the calibrated controls in total 
time. For extreme accuracy, any of the twelve steps can 
be adjusted to the accuracy of an external standard. 

Manual Reset — Single sweeps may be initiated by a 
front-panel button. When the RESET button is pressed, a 
single sweep results if the main sweep has been adjusted 
to free-run. When the main sweep is adjusted for trig- 
gered operation, pressing the RESET button arms the 
sweep to fire on the next trigger received. After firing 
once, the sweep is locked out and will not fire again un- 
til rearmed by pressing the RESET button. A front-panel 
indicator lights when main sweep is reset and ready to 
accept a trigger. 

For automatic reset operation, the delaying sweep 
can be adjusted to rearm the main sweep to fire on the 
next trigger received. 

Trigger-Rate Source — Triggered sweep rates of 10 
cycles to 40 kc are obtained by adjusting the duration of 
the free-running delaying sweep, and using it to trigger 
the main sweep internally, or to trigger an external 
device. 

Delayed-Trigger Source — The delayed trigger, 
amplitude approximately 5 v, is derived from the main 
sweep or delaying sweep, depending upon the position 



of the HORIZONTAL DISPLAY switch. The delay is cali- 
brated and is adjustable over the duration of the sweep 
sawtooth. 

Other Available Waveforms — A positive gate 
from the delaying sweep at approximately 20-v ampli- 
tude is available at the front panel. The vertical signal 
is brought out from the main amplifier to a front-panel 
connector for use in triggering the delaying sweep or 
other external applications. Peak-to-peak level is about 
1 .5 v/cm of vertical deflection on the crt screen. 

For extra convenience, 6.3 v ac at 1 amp is available 
at another front-panel connector. 

Trigger Requirements — The delaying sweep re- 
quires a trigger from 0.1 v to ± 1 00 v fed into its TRIG- 
GER terminal. A switch permits selection of Ix or 1 Ox 
attenuation and another switch provides for positive or 
negative-trigger polarity. 

OTHER CHARACTERISTICS 

All other characteristics are identical to those of the 
Tektronix Type 531 Cathode-Ray Oscilloscope described 
in the preceding pages. 

VACUUM TUBE COMPLEMENT 

Vertical amplifiers 2 6CL6 

Vertical amplifier CF 2 6BQ7A 

Vertical amplifiers 2 1 2BY7 




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TYPE 530 SERIES OSCILLOSCOPES 



Internal trigger amplifier 6U8 

Internal trigger CF 6BQ7A 

Cal multivibrator 6U8 

Horizontal position and cal output CF . . . . 6BQ7A 

Trigger amplifier 6BQ7A 

Trigger shaper 6U8 

Positive multivibrator and trigger amplifier . 6U8 

Negative multivibrator and clamp 6U8 

Holdoff CF 6BQ7A 

Positive multivibrator and CF 6BQ7A 

Negative multivibrator 1 2BY7 

Sawtooth and gate CF 6BQ7A 

Dual-trace trigger amplifier 6AU6 

Disconnect diodes 6AL5 

Sweep generator 6CL6 

Sweep generator CF 6BQ7A 

Delaying sweep generator 1 2AU6 

Disconnect diodes 1 2AL5 

Trigger amplifier 6BQ7A 

Trigger amplifier CF 1 2AU7 

Trigger shaper 6U8 

Multivibrator and gate CF 6BQ7A 

Multivibrator 6U8 

Sweep generator and holdoff CF 6BQ7A 

Comparator 6BQ7A 

Trigger CF and constant current 6U8 

Delay multivibrator 6U8 

Comparator 6U8 

Horizontal drive CF 6BQ7A 

Horizontal amplifier 6BQ7A 

Horizontal output CF 6BQ7A 

Sweep start compensator 6CL6 

Unblanking mixer 6BQ7A 

High-voltage oscillator 6AU5 

Regulator 12AU7 

High-voltage rectifiers 5 5642 

Voltage reference 5651 

Series regulators 2 6080 

Regulator amplifiers 5 6AU6 

Series Regulators 4 1 2B4 

Comparator amplifiers 2 1 2AX7 

Cathode-ray tube T51P2A 

MECHANICAL SPECIFICATIONS 

Ventilation — Safe operating temperature is main- 
tained by filtered, forced-air ventilation. 

Construction — Aluminum-alloy cabinet and chassis. 



Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions — 24" long, 13" wide, 16" high. 

Weight — 65 lbs. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 535 watts with Type 53/54C unit plugged in. 

Type 535, without plug-in units $1300 

Includes: 2 — P510A probes 

2 — A510 binding-post adapters 

1 — W530B test lead (012013) 

1 — F510-5 green filter (378503) /- CyuHsuQrkA* 

1 — Instruction manual 

Currently Available Extras 





c 



Rack Mounting Price on request 

P2 crt phosphor normally furnished, 

PI, P7, PI 1 optional No extra charge 

Other phosphors can be furnished on special order. 

Recommended Additional Accessories 

P400-Series Low-Capacitance Probes — For complete 
specifications please see, Accessory Section. 

For special test accessories for this instrument, please see 
the Test Accessory Section. 

Price f.o.b. Portland (Beaverton), Oregon. 

i * 






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y 



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TYPE 530 SERIES OSCILLOSCOPES 




TYPE 532 CATHODE-RAY OSCILLOSCOPE 



H 



Designed for Extra Dependability 

Wide Sweep Range 

0.2 /isec/cm to 12 sec/cm. 

DC-Coupled Vertical Amplifier 

Passband with wide-banc! plug-in units — dc to 5 mc. 
Risetime with wide-band plug-in units — 0.07 jusec. 

Versatile Triggering Circuitry 

Amplitude level selection or AUTOMATIC 
TRIGGERING. 



Horizontal Input Amplifier 

Sensitivity 0.2 v/cm to 20 v/cm, continuously 
variable. 



♦ 



DC-Coupled Unblanking 



Vertical Beam-Position Indicators 



GENERAL DESCRIPTION 

The Tektronix Type 532 is designed for users who do 
not need the high-speed sweeps, high writing rate, and 
wide passband of the Type 531. Simplified circuitry 
eases vacuum-tube loading, lower accelerating poten- 
tial reduces possibility of screen damage at very-slow 
sweep speeds and makes possible greater linear verti- 
cal deflection. The Type 532 has all the precision and 
stability you expect in Tektronix oscilloscopes. Signal- 
handling versatility of the Type 53 and Type 53/54 
Plug-In Units is available in the Type 532, within the 
dc-to-5 mc passband of its main vertical amplifier. It is 
an instrument that will give lasting satisfaction in the 
many laboratory applications within its capabilities. 



VERTICAL DEFLECTION SYSTEM 

DC-Coupled Output Amplifier — The vertical am- 
plifier of the Type 532 is designed to be used with any 
one of the Type 53 or Type 53/54 Plug-In Preamplfiers. 
The passband of the Type 532 is less than 3 db down at 
5 mc, adjusted for optimum transient response with the 
wide-band preamplifier units plugged in. Frequency re- 
sponse of the wide-band units is limited to that of the 
main-unit vertical amplifier, but the overall response is 
not materially affected when plug-in units with pass- 
bands of 2 mc and lower are used. The main-unit sensi- 
tivity is 0.1 v/cm with balanced input. 




In order to operate the Type 532, one of the pream- 
plifiers must be plugged in. 

The 532 frequency response and risetime with the 
following plug-in units: 

Type 53/54A — dc to 5 mc, 0.07 ju,sec. 
Type 53/54B — dc to 5 mc, 0.07 ^sec. 
Type 53/54C — dc to 5 mc, 0.07 fisec. 
Type 53/54D — dc to 350 kc at 1 mv/cm, increasing 

to 2 mc as sensitivity is decreased to 50 mv/cm. 
Type 53/54E — 0.06 cycles to 60 kc. 
Type 53/54G — dc to 5 mc, 0.07 jasec. 
Type 53/54K — dc to 5 mc, 0.07 /xsec. 

Direct Input to CRT — An aperture in the side of 
the cabinet permits direct connection to the crt deflec- 
tion plates. 



HORIZONTAL DEFLECTION SYSTEM 

The sweep generator in the Type 532 is a Miller run- 
up type. Excellent sweep linearity results from use of 
inverse feedback in the timing circuits. Characteristics 
of the circuitry make possible the wide sweep range of 
0.2 jusec/cm to 1 2 sec/cm. 

Calibrated Sweeps — The Type 532 has twenty- 
one calibrated sweeps, accurate within 3%. The main 
sweep control has seven positions; 1, 10, 1 00 /xsec/cm, 
...1, 10, 100 millisec/cm,. .. 1 sec/cm. Three multi- 



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TYPE 530 SERIES OSCILLOSCOPES 





plier switch positions of 1,2, and 5 for each of the 
main sweep steps provide a total of 21 calibrated 
sweeps. The remaining three positions on the multiplier 
switch of 1 to 2.5, 2 to 5, and 5 to 1 2 provide continu- 
ously variable sweeps from 1 /.isec/cm to 12 sec/cm. 
The 5x magnifier applied to the 1 ju.sec/cm sweep ex- 
tends the calibrated sweep range to 0.2 ftsec/cm. 

Sweep Magnifier — Sweep magnification is ob- 
tained by effectively increasing the gain of the sweep 
output amplifier by a factor of five. The center 2 cm of 
the trace is expanded to 10 cm. Any one-fifth of the 
magnified sweep can be displayed on the screen by 
means of the HORIZONTAL POSITION control. Accu- 
racy is within 3% except on the 1 /xsec/cm range, 
where accuracy is within 5%. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc coupled to the grid of the crt to assure uni- 
form unblanking bias for all sweep speeds and repeti- 
tion rates. 

Trigger Selection — A concentric control permits trig- 
gering from either the positive or negative slopes of an 



internal, external, or line signal; and selection of ac or 
dc coupling through the triggering circuits, or automatic 
triggering. 

Automatic Triggering — With the control in the 
AUTO position, the sweep will be triggered by any re- 
current incoming signal from approximately 60 cycles to 
approximately 2 mc. Signals differing in frequency, am- 
plitude, and shape can be observed without readjust- 
ment of the triggering controls. In the absence of an in- 
put signal, the sweep is automatically triggered at about 
a 50-cycIe rate, providing a reference trace on the crt 
screen. 

Triggering Level— The TRIGGERING LEVEL control 
selects the amplitude level where triggering occurs. It 
permits triggering the sweep at a selected level on 
simple or complex waveforms. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to cause 2 mm deflection. External 
triggering — a signal of 0.2 v to 100 v. 

Horizontal Input Amplifier — DC-coupled external 
connection to the sweep amplifier is through a front- 



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TYPE 530 SERIES OSCILLOSCOPES 




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panel terminal. Combination of a step attenuator and 
variable amplifier-gain control makes the horizontal in- 
put sensitivity continuously variable from 0.2 v/cm to 
20 v/cm. Passband is dc to 300 kc. 

Delayed Gate — A delayed gate voltage of approxi- 
mately 20 v amplitude is available at the front panel. 
The amount of delay from the start of the sweep is con- 
tinuously adjustable throughout the sweep duration. 

OTHER CHARACTERISTICS 

Cathode-Ray Tube — 4-kv accelerating potential is 
applied to the Tektronix Type T52P cathode-ray tube. 
The T52P is a 5" flat-faced precision tube with a helical 
post-accelerating anode, providing 8 cm of linear verti- 
cal deflection. A P-2 phosphor, providing best results 
over the wide sweep range, is supplied unless another 
phosphor is requested. 

Amplitude Calibrator — A square-wave calibration 
voltage is available through a front-panel uhf connector. 
Eighteen fixed voltages, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 
100 millivolts, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100 volts 
peak-to-peak are provided. Accuracy is within 3%. 
Square-wave frequency is approximately 1 kc. 

Output Waveforms — Front-panel connectors pro- 
vide a 20-volt positive-gate voltage of the same duration 
as the sweep, the positive-going sweep sawtooth wave- 
form, and a positive delayed gate. The vertical signal 
is brought out to a front-panel terminal for external ap- 
plications. 

Regulated Power Supply — Electronic regulation 
compensates for line-voltage variations between 105 
and 1 25 v or 210 and 250 v, and for current-demand 
differences among the Plug-In Preamplifiers. 

Beam-Position Indicators — A pair of indicator 
lights shows the vertical direction of the electron beam 
when it is not on the screen. 

Illuminated Graticule — An edge-lighted graticule 
is marked in centimeters with two-millimeter baseline 
divisions for convenience in making time and amplitude 
measurements. Illumination is controlled by a front-panel 
control. 



VACUUM TUBE COMPLEMENT 

Vertical amplifiers 2 

Cathode followers 

Vertical output amplifiers 2 

Beam position amplifier and 

internal trigger CF 

Vertical signal out 

Trigger amplifier 

Trigger shaper 

Positive multivibrator and hold-off CF .... 
Negative multivibrator 



12AU6 
6BQ7A 
6CL6 

6BQ7A 

6AU6 

6U8 

6U8 

6BQ7A 

6AU6 



Sweep generator 6AU6 

Sweep generator CF and multi CF 6BQ7A 

Disconnect diodes 6AL5 

Sweep hold-off CF and stability CF 6BQ7A 

Gate out CF and dual-trace trigger amplifier 6AN8 

Sawtooth out CF and delayed gate out CF. 1 2AU7 

Delayed gate pickoff 2 6AU6 

External sweep amplifier 6BQ7A 

Cathode follower and sweep output 

amplifier 6BQ7A 

Sweep output amplifier and 

+ 1 30 v supply CF 6BQ7A 

Calibrator multivibrator and CF 6BQ7A 

Calibrator multivibrator 6AU6 

Rectifiers 5 5V4 

Voltage reference . 5651 

Comparators 2 1 2AX7 

Regulator amplifiers 4 6AU6 

Series regulators 3 1 2B4 

Series regulators 6080 

High-voltage oscillator 6AQ5 

Shunt regulator and dc comparator 12AU7 

High-voltge rectifiers 3 5642 

Cathode-ray tube T52P2 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation assures 
safe operating temperature. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions — 24" long, 13" wide, 16" high. 

Weight — 52 pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 475 watts with Type 53/54D unit plugged in. 

Type 532, without plug-in units $825 

Includes: 2 — P510A probes 

2 — A510 binding-post adapters 
1 — W530-B test lead (012013) 
1 — F5 10-3 amber filter (378501) 
1 — Instruction manual 



Currently Available Extras 

Rack mounting Price on request 

P2 phosphor normally furnished. 

PI, P7, PI 1 optional. . . No extra charge 

Other phosphors can be furnished on special order. 

Recommended Additional Accessories 

For special test accessories for this instrument, please see 
the Test Accessory Section. 

Price f.o.b. Portland (Beaverton), Oregon. 



3/56 



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79 




€ 




80 



3/56 



TYPE 540 SERIES OSCILLOSCOPES 




I* 



f 



TYPE 541 CATHODE-RAY OSCILLOSCOPE 
for Fast-Rise Applications 



Excellent Transient Response 

Main-unit vertical-amplifier risetime — 
10 millimicroseconds. 

Wide Range of Vertical-Amplifier Characteristics 

Instant convertibility through changing plug-in 
preamplifiers. 

600,000,000 to 1 Sweep Range 

0.02 ^sec/cm to 12 sec/cm. 

Versatile Triggering Circuitry 

Positive and negative internal and external triggering, 
with 30 MC SYNC, amplitude level selection, and 
AUTOMATIC TRIGGERING. 

1 0-kv Accelerating Potential 

Full 4 cm x 1 cm Linear Deflection 

Balanced 0.2 sec Delay Network 



GENERAL DESCRIPTION 

The Tektronix Type 541 is a high-speed laboratory 
oscilloscope with performance capabilities far above any 
previous oscilloscope of its size and cost. In combination 
with the Type 53/54K Plug-In Unit, the Type 541 offers 
a vertical-amplifier passband of dc to 30 mc and a rise- 
time of 12 millimicroseconds, opening the way to faster, 
easier analyses of fast-rising waveforms. Wide sweep 
range, high accelerating potential, and full four centi- 
meters of vertical deflection fully complement the ex- 
tended vertical-amplifier range, and the convertibility 
provided by plug-in preamplifiers adds immensely to its 
value by making it adaptable to almost all laboratory- 
oscilloscope applications. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Output Amplifier — The wide-band 
fast-rise dc-coupled output amplifier has a risetime of 
10 millimicroseconds, and is factory adjusted for optimum 
transient response. 

The Type 53/54K Fast-Rise Plug-In Preamplifier, de- 
veloped for Type 541 and Type 545 Oscilloscopes, pro- 
vides a maximum sensitivity of 0.05 v/cm, with 1 2- mil li- 
microsecond risetime, dc-to-30 mc passband, and 20-^f 
input capacitance. (Frequency response is down 3 db 
zb T /2 db at 30 mc, 6 db at approximately 41 mc, 1 2 db 
at approximately 55 mc. ) 

The Type 541 vertical deflection system is designed to 
be used with any of the Type 53/54 Plug-In Preampli- 




fiers. In order to operate the Type 541, one of the pre- 
amplifiers must be plugged in. 

Type 541 vertical response with the following plug-in 
units: 

Type 53/54A — dc to 20 mc, 0.018-p.sec risetime. 

Type 53/54B — dc to 20 mc, 0.018-tisec risetime 
at 0.05 v/cm to 50 v/cm ... 2 cycles to 1 2 mc, 
0.03-/xsec risetime at 5 mv/cm to 0.05 v/cm. 

Type 53/54C — dc to 24 mc, 0.015-^sec risetime. 

Type 53/54D — dc to 350 kc at 1 mv/cm, increas- 
ing to 2 mc at 50 mv/cm. 

Type 53/54E — 0.06 cycles to 60 kc. 

Type 53/54G — dc to 20 mc, 0.018-ju.sec risetime. 

Type 53/54K — dc to 30 mc, 0.012-/xsec risetime. 

Probes — Two P410 low-capacitance probes are sup- 
plied with the instrument. Input capacitance of the Type 
541 -Type 53/54K combination with the P410 probe is 
8 ju.ju,f, maximum sensitivity is 0.5 v/cm. Excellent tran- 
sient response is retained, as the P410 introduces no 
overshoot or ringing, but frequency response is down an 
additional 1 db at 30 mc. Accessory probes are avail- 
able with input capacitances of 12 /x/xf at 5x, 5.5 fifxi at 
20x, and 2.5 fxfxi at 50x attenuation. 



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Balanced Delay Netork — A signal delay of 
0.2 jusec is introduced by the balanced (push-pull) de- 
lay network. Permits observation of the leading edge of 
the waveform that triggers the sweep. 

Direct Input to CRT — An aperture in the side of the 
cabinet permits direct connection to the deflection plates. 

HORIZONTAL DEFLECTION SYSTEM 

The horizontal deflection system of the Type 541 is 
essentially the same as that of the Tektronix Type 531. 
Sweep generator used in the Type 541 is the Miller runup 
type. Inverse feedback in the timing circuitry assures ex- 
cellent linearity. Characteristics of this circuitry provide 
an extremely wide sweep range of 0.02 jusec/cm to 
1 2 sec/cm. 

Calibrated Sweeps — The Type 541 has twenty-four 
calibrated sweeps, accurate within 3%. The main sweep 
control has 8 positions — 0.1, 1,10, 1 00 jasec/cm . . .1, 
10, 100 msec/cm. . . 1 sec/cm. Multiplier positions of 1, 
2, and 5 for each main-sweep step provide a total of 24 
calibrated sweeps, permitting better use of the total 
screen area. The remaining three positions on the multi- 
plier switch are 1 to 2.5, 2 to 5, and 5 to 1 2 variable 
positions, making the sweep time continuously variable 
from 0.1 ,asec/cm to 12 sec/cm. The 5x magnifier ap- 
plied to the 0.1 /isec/cm sweep extends the calibrated 
range to 0.02 /xsec/cm. 

Sweep Magnifier — Sweep magnification is obtain- 
ed by increasing the gain of the sweep output amplifier 
by a factor of five. The center 2 cm of the trace is ex- 
panded to the left and right of center to fill the screen. 
Any one-fifth of the magnified sweep can be displayed 
on the screen by rotating the HORIZONTAL POSITION 
control. Accurate 5x magnification is obtained on all 
ranges, providing an additional 24 calibrated sweeps. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc-coupled to the grid of the cathode-ray tube, 
assuring uniform bias for all sweep speeds and repetition 
rates. 

Trigger Selection — A concentric control permits trig- 
gering from either the positive or negative slopes of 
internal, external, or line voltage signals; and selection 
of ac or dc-coupling through the triggering circuits, auto- 
matic triggering, or high-frequency sync. 

Triggering Level — The amplitude level where trig- 
gering occurs is selected with the TRIGGERING LEVEL 
control. Permits triggering the sweep at a selected level 
on simple or complex waveforms. 

Automatic Triggering — With the control in the AC 
AUTO position, the sweep will be triggered by any re- 
current incoming signal from 60 cycles to 2 megacycles. 
Signals differing in frequency, amplitude, and shape can 
be observed without readjustment of the triggering con- 
trols. In the absence of an input signal, the sweep is 
automatically triggered at approximately a 50-cycle 



rate, providing a reference trace on the screen. 

High-Frequency Sync — When the TRIGGER MODE 
switch is in the HF SYNC position, the sweep will syn- 
chronize with sine-wave signals in the frequency range 
of about 5 mc to about 30 mc. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to cause a 2-mm deflection. External 
triggering — a signal of 0.2 v to 100 v. 

Horizontal Input Amplifier — DC-coupled external 
connection to the sweep-output amplifier is through a 
front-panel connector. Combination of a step attenuator 
and variable attenuator makes the horizontal input sen- 
sitivity continuously variable from 0.2 v/cm to 20 v/cm. 
Passband is dc to 240 kc. 

OTHER CHARACTERISTICS 

Cathode-Ray Tube — 10-kv accelerating potential 
assures bright displays when using fast sweeps at low 
repetition rates, and in single-sweep applications. The 
Type 541 uses the new Tektronix Type T54P cathode-ray 
tube. The T54P is a 5" flat-faced metallized precision 
tube with helical post-accelerating anode. It provides a 
linear 4 cm x 1 0-cm viewing area. For best results over 
the wide sweep range of the Type 541, a P2 screen is 
normally furnished with the instrument. 

Regulated Power Supply — Electronic regulation 
compensates for line-voltage variations between 105 
and 1 25 v, and for current-demand differences among 
the plug-in preamplifiers. 

Amplitude Calibrator — A square-wave calibration 
voltage is available through a front-panel uhf connector. 
Eighteen fixed voltages — 0.2, 0.5, 1, 2, 5, 10, 20, 50, 
100 millivolts, 0.2, 0.5, 1, 2,5, 10, 20,50, and 100 volts 
peak-to-peak are provided. Accuracy is within 3%. 
Square-wave frequency is approximately 1 kc. 

Output Waveforms — A positive-gate voltage of the 
same duration as the sweep, and the sweep-sawtooth 
waveform are available at front-panel binding posts via 
cathode followers. The vertical signal is brought out to a 
front-panel terminal for external applications. 

Beam Position Indicators — Two pairs of indicator 
lights show the direction of the crt electron beam when 
it is not on the screen. 

Illuminated Graticule — An edge-lighted graticule 
is marked in centimeter squares with two-millimeter 
baseline divisions for convenience in making measure- 
ments in time and amplitude. Illumination of the grati- 
cule is controlled by a front-panel knob. 

VACUUM TUBE COMPLEMENT 

Vertical beam-position indicators and 

input amplifiers 2 6AW8 

Driver and internal trigger CF 6BQ7A 

Driver and vertical signal out CF 6BQ7A 




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Internal trigger amplifiers 2 6CB6 

Distributed output amplifiers 12 6CB6 

Calibrator multivibrator 6U8 

Cal output and horizontal position CF .... 6BQ7A 

Trigger amplifier 6BQ7A 

Trigger shaper 6U8 

Positive multivibrator and multi CF 6BQ7A 

Negative multivibrator 1 2BY7 

Unblanking and holdoff CF 6BQ7A 

Stability and holdoff CF 6BQ7A 

Sawtooth and gate CF 6BQ7A 

Dual-trace sync amplifier 6AU6 

Disconnect diodes 6AL5 

Sweep generator 6CL6 

Sweep generator CF 6BQ7A 

External horizontal and dc level CF 1 2AU7 

External horizontal amplifier 6BQ7A 

Horizontal driver CF 6BQ7A 

Horizontal amplifier and output CF 2 6BQ7A 

Sweep start compensator 6CL6 

Voltage reference 5651 

Comparator amplifiers 2 1 2AX7 

Regulator amplifiers 5 6AU6 

Series regulators 4 1 2B4 

Series regulators 2 6080 

High-voltage oscillator 6AU5 

Regulator 1 2AU7 

High-voltage rectifiers 5 5642 

Cathode-ray tube T54P2 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered forced-air ventilation maintains 
safe operating temperatures. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions— 13" wide, 16" high, 24" long. 



Weight — 61 V2 pounds. 

Power Requirements — 1 05-1 25 v or 210-250 v 50-60 
cycles, 485 watts with Type 53/54K Unit plugged in. 
Type 541, without plug-in units $1 145 

Includes: 2 — P410 probes 

2 — A510 binding-post adapters 
1 — W530B test lead (012013) 
1 — F510-5 green filter (378503) 
1 — Instruction manual 

2**wu S4l R ( Z+ok. -r*+^«t*J, ) 4/,/?* 
Ov Currently Available Extras 

Rack mounting Price on request 

P2 crt phosphor normally furnished, 

PI , P7, PI 1 optional No extra charge 

Other phosphors can be furnished on special order. 

Recommended Additional Accessories 

Low Capacitance Accessory Probes — for use with 
wide-band Plug-In Units. These probes preserve the ex- 
cellent transient response, introducing no overshoot or 
ringing, but cause an additional frequency-response loss 
of approximately 1 db at 30 mc. 



Probe 

P405 

P410 

P420 

P450-L 

P4100 



Input Impedance 

1 2 /j,fif, 5 megohms 
/ifii, 1 megohms 



8 



Maximum Sensitivity Price 

0.25 v/cm $10.50 

0.5 v/cm 10.50 

5.5 fifil, 10 megohms 1 v/cm 10.50 

2.5 nfii ± 10%, 10 megohms 2.5 v/cm 12.50 

2.5 /i^f ± 10%, 10 megohms 5 v/cm 12.50 



P510A Probe — This probe should be used in place of 
the low-capacitance probes when the more-sensitive 
plug-in units — Type 53/54B and Type 53/54D — are 
used with the Type 541. Please see the Accessory Section 
for complete specifications. 

For special test accessories for this instrument, please 
see the Test Accessory Section. 

Prices f.o.b. Portland (Beaverton), Oregon. 



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TYPE 540 SERIES OSCILLOSCOPES 



TYPE 545 CATHODE-RAY OSCILLOSCOPE 
with Flexible Sweep Delay 




Wide-Range Calibrated Sweep Delay 

1 jutsec to 0.1 sec, continuously variable. 

Two Operating Modes 

Conventional Operation — Inherent time-jitter less than 
1 part in 20,000. 

Triggered Operation — Jitter-free at any magnifica- 
tion, even in the presence of actual signal jitter. 

Accurate Calibration 

Range accuracy within 1%, incremental accuracy 
within 0.2% of full scale. 

Trigger Rate Source 

10 cycles to 40 kc, continuously variable. 

All other major specifications same as Type 541. 



GENERAL DESCRIPTION 

The Type 545 Cathode-Ray Oscilloscope is essentially 
the Type 541 plus the Tektronix lockout-reset sweep-de- 
lay circuitry. All major specifications other than those 
pertaining to the sweep-delay circuitry are the same. 
Please refer to the Type 541 section of this catalog for 
these specifications. 



DELAYED SWEEP 

The sweep-delaying system of the Type 545 is essen- 
tially the same as that of the Tektronix Type 535. Two 
modes of operation permit use as a conventional delay- 
ed sweep, or as a triggered delayed sweep. In conven- 
tional operation, the sweep starts immediately after the 
period of delay. In triggered operation, the sweep does 
not start until it receives the first trigger after the period 
of delay. Time-jitter is less than 1 part in 20,000 when 
the delayed sweep is operated in the conventional man- 
ner. In triggered operation, the delayed sweep is start- 
ed by the signal under observation, resulting in a steady 
display even in the presence of jitter in the incoming 
signal. 

Sweep delay is accomplished in the Type 545 by use 
of a second sweep called the DELAYING SWEEP. A posi- 
tion on the HORIZONTAL DISPLAY switch provides for 
displaying the delaying sweep on the crt screen. When 
viewing the delaying sweep, the main sweep appears 
upon it as a section of increased brightness, and may be 
ranged in or out to position its start at the desired point. 




If the main sweep is adjusted to free-run, it will start 
exactly at this point. If it is adjusted for triggered opera- 
tion, it will not start until the first trigger after the period 
of delay. A turn of the HORIZONTAL DISPLAY switch 
returns the main sweep to the screen, delayed by the 
selected amount. 

Calibration — A calibrated step control and a ten- 
turn precision control cover the sweep delay continuously 
from 1 microsecond to 0.1 second. Twelve steps — 2, 5, 
10, 20, 50, 100, 200, 500 /xsec/cm, 1, 2, 5, and 10 
msec/cm — are accurate within 1 %. Incremental accura- 
cy of the precision variable control is within 0.2%. De- 
lay time can be read either from the screen in time per 
centimeter, or from the calibrated controls in total delay 
time. For extreme accuracy, any of the twelve steps can 
be adjusted to the accuracy of an external standard. 

Manual Reset — Single sweeps can be initiated by a 
front-panel button. When the RESET button is pressed, a 
single sweep results if the main sweep has been adjusted 
to free-run. When the main sweep is adjusted for trig- 
gered operation, pressing the RESET button arms the 
sweep to fire on the next trigger received. After firing 
once, the sweep is locked out and will not fire again un- 
til rearmed by pressing the RESET button. A front-panel 
indicator lights when the main sweep is reset and ready 



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to accept a trigger. For automatic reset operation, the 
delaying sweep can be adjusted to rearm the main 
sweep to fire on the next trigger received. 

Trigger-Rate Source — Triggered sweep rates of 1 
cycles to 40 kc are obtained by adjusting the duration of 
the free-running delaying sweep, and using it to trigger 
the main sweep internally, or to trigger an external 
device. 

Delayed-Trigger Source — The delayed trigger, am- 
plitude approximately 5 v, is derived from the main 
sweep or delaying sweep, depending upon the position 
of the HORIZONTAL DISPLAY switch. The delay is cali- 
brated and is adjustable over the duration of the sweep 
sawtooth. 

Other Available Waveforms — A positive gate 
from the delaying sweep at approximately 20-v ampli- 
tude is available at the front panel. The vertical signal 
is brought out from the main amplifier to a front-panel 
connector for use in triggering the delaying sweep or 
other external applications. Peak-to-peak level is about 



1.5 v/cm of vertical deflection on the crt screen. 

For extra convenience, 6.3 v ac at 1 amp is available 
at another front-panel connector. 

Trigger Requirements — The delaying sweep re- 
quires a trigger from 0.1 v to lOOv fed into its TRIG- 
GER terminal. A switch permits selection of Ix or lOx 
attenuation and another switch provides for positive or 
negative trigger polarity. 

OTHER CHARACTERISTICS 

All other characteristics are identical to those of the 
Tektronix Type 541 Cathode-Ray Oscilloscope described 
in the preceding pages. 

VACUUM TUBE COMPLEMENT 

Vertical beam-position indicators and 

input amplifiers 2 6AW8 

Driver and vertical trigger CF 6BQ7A 




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Driver and vertical signal out CF 6BQ7A 

Internal trigger amplifiers 2 6CB6 

Distributed output amplifiers 12 6CB6 

Calibrator multivibrator 6U8 

Cal output and horizontal position CF .... 6BQ7A 

Trigger amplifier 6BQ7A 

Trigger shaper 6U8 

Positive multivibrator and multi CF 6BQ7A 

Negative multivibrator 1 2BY7 

Holdoff CF 6U8 

Delayed trigger amplifier and CF 6U8 

Stability CF and ready indicator 6U8 

Sawtooth and gate CF 6BQ7A 

Dual-trace sync amplifier 6AU6 

Disconnect diodes 6AL5 

Sweep generator 6CL6 

Sweep generator CF 6BQ7A 

Delaying sweep trigger CF 1 2AU7 

Trigger amplifier 6BQ7A 

Trigger shaper and ext sweep CF 6U8 

Comparator 6BQ7A 

Multivibrator 6U8 

Multi and gate out CF 6BQ7A 

Disconnect diodes 1 2AL5 

Sweep generator 1 2AU6 

Sweep generator and holdoff CF 6BQ7A 

Delay pickoff 6U8 

Trigger shaper • 6U8 

Trigger CF and constant current 6U8 

Horizontal driver CF 6BQ7A 

Horizontal amplifier and output CF 2 6BQ7A 

Sweep start compensator 6CL6 

Voltage reference 5651 

Comparator amplifiers 2 1 2AX7 

Regulator amplifiers 5 6AU6 

Series regulators 4 1 2B4 

Series regulators 2 6080 

Unblanking mixer 6BQ7A 

High-voltage oscillator 6AU5 

Regulator 1 2AU7 

High-voltage rectifiers 5 5642 

Cathode-ray tube T54P2 

MECHANICAL SPECIFICATIONS 

Ventilation — Safe operating temperature is main- 
tained by filtered, forced-air ventilation. 



Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions — 24" long, 13" wide, 16" high. 

Weight — 65 pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 545 watts with Type 53/54K Unit plugged in. 

Type 545, without plug-in units $1450 

Includes: 2 — P410 probes 

2 — A510 binding-post adapters 
1 — W530B test lead (012013) 
1 — F5 10-5 green filter (378503) 
1 — Instruction manual „ . _ #* 

•J- S4S$t - *<****• 

ALU- $P£ OV* 




Currently Available Extras 

Rack mounting. . f. .*.?. T. .*&**. . . -Price on request 
P2 crt phosphor normally furnished, 

PI, P7, PI 1 optional No extra charge 

Other phosphors can be furnished on special order. 

Recommended Additional Accessories 

Low Capacitance Accessory Probes — for use with 
wide-band Plug-In Units. These probes preserve the ex- 
cellent transient response, introducing no overshoot or 
ringing, but cause an additional frequency-response loss 
of approximately 1 db at 30 mc. 

Probe Input Impedance 

P405 12 fifii, 5 megohms 

P410 8 fi/if, 10 megohms 

P420 5.5 fifii, 10 megohms 

P450-L 2.5 fifii ±10%, 10 megohms 

P4100 2.5 fifif ±10%, 10 megohms 

P510A Probe — This probe should be used in place of 
the low-capacitance probes when the more-sensitive 
plug-in units — Type 53/54B and Type 53/54D — are 
used with Type 545. Please see the Accessory Section 
for complete specifications. 

For special test accessories for this instrument, please 
see the Test Accessory Section. 

Prices f.o.b. Portland (Beaverton), Oregon. 



Maximum Sensitivity 


Price 


0.25 v/cm 


$10.50 


0.5 v/cm 


10.50 


1 v/cm 


10.50 


ms 2.5 v/cm 


12.50 


ms 5 v/cm 


12.50 



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PLUG-IN PREAMPLIFIERS 




TYPE 53/54A PLUG-IN UNIT 
Wide- Band DC Preamplifier 





!• 



Transient Response 

With Type 531 and Type 535 — 
Risetime — 0.035 /tsec. 

With Type 532 — 

Risetime — 0.07 ,usec. 

With Type 541 and Type 545 — 
Risetime — 0.018 //.sec. 

Frequency Response 

With Type 531 and Type 535 — 
Passband — DC to 10 mc. 

With Type 532— 

Passband — DC to 5 mc. 

With Type 541 and Type 545 — 
Passband — DC to 20 mc. 

Sensitivity 

Calibrated — 0.05 v/cm to 20 v/cm. 

Continuously Variable — 0.05 v/cm to 50 v/cm. 

GENERAL DESCRIPTION 

The Type 53/54A Plug-In Preamplifier meets the re- 
quirements of most wide-band applications. Wide pass- 
band, excellent transient response, dc-coupling, and 
calibrated sensitivity are qualities most users require in 
an oscilloscope vertical amplifier. The Type 53/54A 
gives all of these qualities to Type 530 and Type 540- 
Series Oscilloscopes. 



OTHER CHARACTERISTICS 

Calibrated Sensitivity — Nine calibrated sensitivity 
steps are provided: 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, and 
20 v/cm. A variable attenuator fills in between steps, 
making the sensitivity continuously variable from 0.05 
v/cm to 50 v/cm. 

Calibration Accuracy — When accurately set on any 
one step, all other steps will be within 3% of the panel 
reading. 

Two Signal Inputs — Two signal input connectors 





with more than 60-db isolation are controlled by a four- 
position switch. The INPUT SELECTOR provides for ac- 
coupling or dc-coupling through either input. A blocking 
capacitor is inserted in the AC positions, limiting the low- 
frequency response to 2 cycles. 

Input Impedance — 47 /x/rf paralleled by 1 megohm. 



VACUUM TUBE COMPLEMENT 

Input CF 12AU6 

Amplifiers 2 1 2AU6 

Output CF 1 2AT7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched panel. 
Weight— 3 y 2 lbs. 

Price . . . $85 

For low-capacitance accessory probes, please see the 
Accessory Section. 

Price f.o.b. Portland (Beaverton), Oregon. 



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PLUG-IN PREAMPLIFIERS 



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TYPE 53/54B PLUG-IN UNIT 



ide-Band High-Gain Preamplifier 




B 



Sensitivity 

AC-Coupled Only — 0.005 v/cm to 0.05 v/cm. 

AC or DC-Coupled — 0.05 v/cm to 50 v/cm. 
Calibrated — 0.005 v/cm to 20 v/cm. 
Continuously Variable — 0.005 v/cm to 50 v/cm. 

Frequency Response 

With Type 531 and Type 535 — 

0.05 v/cm to 50 v/cm, DC to 1 mc. 
0.005 v/cm to 0.05 v/cm, 2 cycles to 9 mc. 

With Type 532— 

0.05 v/cm to 50 v/cm, DC to 5 mc. 

0.005 v/cm to 0.05 v/cm, 2 cycles to 5 mc. 

With Type 541 and 545 — 

0.05 v/cm to 50 v/cm, DC to 20 mc. 

0.005 v/cm to 0.05 v/cm, 2 cycles to 12 mc. 

Transient Response 

With Type 531 and Type 535 — 

0.05 v/cm to 50 v/cm, 0.035-jUsec risetime. 
0.005 v/cm to 0.05 v/cm, 0.04-/xsec risetime. 

With Type 532— 

0.07-/j.sec risetime for all sensitivities. 

With Type 541 and Type 545 — 

0.05 v/cm to 50 v/cm, 0.018-ju.sec risetime. 
0.005 v/cm to 0.05 v/cm, 0.03-^sec risetime. 



GENERAL DESCRIPTION 

The Type 53/54B Plug-In Unit is essentially the Type 
53/54A with a preamplifier stage added. Three addi- 
tional calibrated sensitivity steps, 0.005, 0.01, and 0.02 
v/cm are available at slightly reduced frequency re- 
sponse and increased risetime when used with Type 531, 
535, 541, 545 Oscilloscopes. In all other specifications 
the Type 53/54B is identical to the Type 53/54A. 



OTHER CHARACTERISTICS 

Calibrated Sensitivities — Twelve calibrated sensi- 
tivity steps— 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1, 2, 
5, 10, and 20 v/cm are available. A variable attenuator 
fills in between steps, making the sensitivity continuously 
variable from 0.005 v/cm to 50 v/cm. 

Calibration Accuracy — When accurately set on any 
one step, all other steps will be within 3% of the panel 
reading. 

Signal Inputs — Two signal input connectors with 
more than 60-db isolation are controlled by a four-posi- 




c] 



tion switch. The INPUT SELECTOR provides for ac-coup- 
ling or dc-coupling through either input. A blocking 
capacitor is inserted in the AC positions, limiting the low- 
frequency response to 2 cycles. 

Input Impedance — 47 jifxi paralleled by 1 megohm. 



VACUUM TUBE COMPLEMENT 

Preamplifier 5654 

Input CF 12AU6 

Cathode follower . . . . 6BQ7A 

Amplifiers 2 1 2AU6 

Output CF 1 2AT7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched anodized panel. 
Weight — 3 T / 2 lbs. 

Price $125 

For low-capacitance accessory probes, please see the 
Accessory Section. 

Price f.o.b. Portland (Beaverton), Oregon. 



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PLUG-IN PREAMPLIFIERS 




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TYPE 53/54C PLUG-IN UNIT 
Dual-Trace Preamplifier 



Two Identical Channels 



Electric Switching 

Triggered — switches on alternate sweeps. 
Free-running — at approximately 100 kc. 

Calibrated Sensitivity — 0.05 v/cm to 20 v/cm. 

Frequency Response 

Passband — DC to 10 mc with Type 531 and Type 535. 

Passband — DC to 5 mc with Type 532. 

Passband — DC to 24 mc with Type 541 and Type 545. 

Transient Response 

Risetime — 0.035 /.'.sec with Type 531 and Type 535. 

Risetime — 0.07 p.sec with Type 532. 

Risetime — 0.015 jusec with Type 541 and Type 545. 



GENERAL DESCRIPTION 

The Type 53/54C Dual-Trace Unit contains two identi- 
cal amplifier channels that can be electronically switch- 
ed either by the oscilloscope sweep or at a free-running 
rate of approximately 100 kc. When amplifier switching 
is triggered by the oscilloscope sweep, the two signals 
to be compared appear on alternate sweeps. Because 
the sweeps are identical, and time-delay characteristics 
of the two amplifier channels are within 2 m/xsec, time 
comparisons can be made with a high degree of accu- 
racy. 

Stationary display of two signals unrelated in fre- 
quency is accomplished by internal triggering of the 
sweep alternately by the two signals. In free-running 
operation, switching occurs at a rate of 100 kc, making 
it possible to view two simultaneous transients. Tran- 
sients of as little as one millisecond duration are well 
delineated, having about one hundred elements in each 
trace. For many purposes, shorter transients may be ade- 
quately observed. Either amplifier channel can be used 
separately without electronic switching, making the Type 
53/54C also useful in all single-trace applications, with- 
in its frequency-response and sensitivity capabilities. 
Maximum flexibility Is obtained by providing separate 
positioning, sensitivity, and polarity inverting controls 
for each channel. 

OTHER CHARACTERISTICS 

Calibrated Sensitivity — Nine calibrated sensitivity 
steps are provided for each channel: 0.05, 0.1 , 0.2, 0.5, 
1, 2, 5, 10, and 20 v/cm. A variable attenuator fills in 
between steps, making the sensitivity continuously vari- 
able from 0.05 v/cm to 50 v/cm. 

Vertical Position Controls — Separate positioning 
controls are provided for each channel. 




Calibration Accuracy — When accurately set on any 
one step, all other steps will be within 3% of the panel 
reading. 

Operating Mode Selection — A four-position switch 
provides for electronic switch operation either triggered 
or free-running, and for separate use of either amplifier 
channel. 

Polarity Inversion — Polarity may be inverted on 
either channel for greater accuracy in comparisons of 
signals 180 degrees out of phase. A blocking capacitor 
is inserted in the AC positions, limiting the low-frequency 
response to 2 cycles. 

Input Impedance — 20 ju^f paralleled by 1 megohm. 

VACUUM TUBE COMPLEMENT 

Input CF 2 6AK5 

Amplifiers 4 1 2AU6 

Switching amplifiers 4 6AU6 

Output CF 1 2AT7 

Coupling diode 6AL5 

Multivibrator 1 2AU7 

Multivibrator waveform shaper 12AU7 

Switching CF 1 2AT7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched anodized panel. 
Weight— 5 Vi lbs. 

Price $275 

For low-capacitance accessory probes, please see the 
Accessory Section. 

Price f.o.b. Portland (Beaverton), Oregon. 



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PLUG-IN PREAMPLIFIERS 



TYPE 53/54D PLUG-IN UNIT 



fa/ High -Gain DC Preamplifier 




Sensitivity 

Calibrated — 1 mv/cm to 50 v/cm. 

Continuously Variable — 1 mv/cm to 125 v/cm. 



Frequency Response 

DC to 350 kc at 1 mv/cm sensitivity. . .increasing to 
DC to 2 mc at 50 mv/cm and lower sensitivity. 



Differential Input 

10,000-to-l rejection ratio for in-phase signals. 



GENERAL DESCRIPTION 

The Type 53/54D equips Type 530-Series and Type 
540-Series Oscilloscopes for work requiring dc-coupling 
at sensitivities as high as 1 mv/cm. Differential input 
with high rejection ratio for in-phase signals permits 
cancellation of unwanted or interfering signals. 



OTHER CHARACTERISTICS 

Input Selector — A six-position switch provides for 
use of either input separately, or both together differ- 
entially, either ac-coupled or dc-coupled. In the AC 
positions a blocking capacitor is inserted, limiting the 
low-frequency response to 2 cycles. 

Deflection Sensitivity Controls — The MILLI- 
VOLTS/CM switch has four calibrated positions: 1,10, 
100, and 1000 mv/cm. A six-position calibrated switch 
provides for multiplication by 1,2, 5, 10, 20, and 50. 
Approximately 3-db point of amplifier high frequency 
response for each position is also indicated by this 
switch. 10,000-to-l rejection ratio for in-phase signals 
up to 20 kc can be achieved at any position of the 
MV/CM MULTIPLIER switch, by careful adjustment of the 
differential balance control. The MV/CM MULTIPLIER, 
by attenuating within the amplifier, reduces drift and in- 
creases bandpass in applications that require less than 
maximum sensitivity. A variable attenuator control pro- 




vides for continuously variable sensitivity from 1 mv/cm 
to 1 25 v/cm. 

Calibration Accuracy — When accurately set on any 
one step, all other steps will be within 3% of the panel 
reading. 

Input Impedance — 47 fxfxf paralleled by 1 megohm. 

VACUUM TUBE COMPLEMENT 

Cascode amplifiers 2 5814 

Amplifiers 2 5879 

Output CF 1 2AU7 

Voltage regulator 1 2AU7 

MECHANICAL SPECIFICATIONS 

Construction — Alum in urn -a Hoy chassis. 
Finish — Photo-etched anodized panel. 
Weight— 4 lbs. 

Price $1 45 

For low-capacitance accessory probes, please see the 
Accessory Section. 

Price f.o.b. Portland (Beaverton), Oregon. 



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PLUG-IN PREAMPLIFIERS 




TYPE 53/54E PLUG- IN UNIT 
Low-Level Differential AC Preamplifier 



U 



f 



Sensitivity 

Calibrated — 50 microvolts/cm to 10 millivolts/cm. 

Continuously Variable — 50 microvolts/crn to 25 milli 
volts/cm. 



Frequency Response 

0.06 cycles to 30 kc at full gain, increasing to 60 kc 
at 0.5 mv/cm. 



Differential Input 

50,000-to-l rejection ratio for in-phase signals up to 
1 kc of ±2 v or less. 



GENERAL DESCRIPTION 

The Type 53/54E Plug-In Unit provides Type 530- 
Series and Type 540-Series Oscilloscopes with calibrated 
vertical sensitivity to 50 microvolts/cm for low-level ap- 
plications. Maximum combined noise and hum is 5 /j.v, 
rms, with input grids grounded at the input connector. 
Separate high-frequency and low-frequency response 
controls permit restricting the bandwidth to further in- 
crease the signal-to-noise ratio. A rejection ratio of 
50,000 to 1 for in-phase signals up to 1 kc can be 
achieved by careful adjustment of the front-panel differ- 
ential-balance control. Use of the internal attenuators 
has a negligible effect on the rejection figure. 



OTHER CHARACTERISTICS 

Calibrated Sensitivity — Eight calibrated sensitivity 
steps are provided: 0.05, 0.1, 0.2, 0.5, 1, 2, 5 and 10 
millivolts/cm. A variable attenuator fills in between 
steps making the sensitivity continuously variable from 
50 microvolts/cm to 25 millivolts/cm. 

Calibration Accuracy — When accurately set on any 
one step, all other steps will be within 3% of the panel 
reading. 

Bandwidth Control — A five-position switch provides 
for approximate high-frequency 3-db points of 60, 10, 
1, 0.25, and 0.05 kc. Another five-position switch selects 
the approximate low-frequency 3-db points of 0.06, 0.2, 
0.8, 8 and 80 cycles. Restricting the bandwidth to the 
requirements of the particular application will provide 
an increase in the signal-to-noise ratio. Input to grids is 
dc-coupled to provide good rejection at low frequencies. 
















Trace Restorer — If the trace should be driven from 
the screen by a large transient, it can be returned to its 
normal position immediately by pressing the trace re- 
storer button. 

Input Impedance — 50 fip.i paralleled by 10 meg- 
ohms. 



VACUUM TUBE COMPLEMENT 

Input amplifiers 5751 

2nd stage and gain control 2 5879 

3rd stage and positioning control 5814 

Output CF 1 2AT7 

Voltage regulators 2 OB2 



MECHANICAL SPECIFICATIONS 

Construction — Aluminum -alloy chassis. 
Finish — Photo-etched anodized panel. 
Weight— 4 y 2 lbs. 

Price $1 65 

Includes: 30" two-conductor shielded cable with input 
connector. 

Price f.o.b. Portland (Beaverton), Oregon. 



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PLUG-IN PREAMPLIFIERS 



TYPE 53/54G PLUG-IN UNIT 
Differential-Wide-Band DC Preamplifier 




Common -mode Rejection 

100 to 1 at full gain. 



Transient Response 

Risetime — 0.035 /xsec with Type 531 and Type 535. 

Risetime — 0.07 //sec with Type 532. 

Risetime — 0.018 /isec with Type 541 and Type 545. 

Frequency Response 

Passband — DC to 10 mc with Type 531 and Type 535, 

Passband — DC to 5 mc with Type 532. 

Passband — DC to 20 mc with Type 541 and Type 545. 



Sensitivity 

Calibrated — 0.05 v/cm to 20 v/cm. 

Continuously Variable — 0.05 v/cm to 50 v/cm. 



GENERAL DESCRIPTION 

The Type 53/54G Plug-In Unit equips Type 530 and 
Type 540-Series Oscilloscopes for wide-band differen- 
tial-input applications. Common-mode rejection is better 
than 100 to 1 for the entire passband at full gain. . . 
better than 300 to 1 at 60 cycles. Independent step at- 
tenuators in each input with 80-db isolation permit mix- 
ing signals of wide amplitude difference. Either input 
can be used separately, INPUT B giving a polarity-in- 
verted display. 



OTHER CHARACTERISTICS 

Input-Selector — A six-position switch provides for 
use of either input separately, or both together differen- 
tially, either ac-coupled or dc-coupled. In the AC posi- 
tions a blocking capacitor is inserted, limiting the low- 
frequency response to 2 cycles. 

Calibrated Sensitivity — Each of the two attenua- 
tors has 9 calibrated positions: 0.05, 0.1, 0.2, 0.5, 1, 2, 
5, 10 and 20 v/cm. A variable attenuator fills in be- 
tween steps making the sensitivity continuously variable 
from 0.05 v/cm to 50 v/cm. The variable attenuator af- 
fects the gain of both inputs at the same time. 




d 



Calibration Accuracy — When accurately set on any 
one step, all other steps will be within 3% of the panel 
reading. 

Input Impedance — 47 /.i/xf paralleled by 1 megohm. 



VACUUM TUBE COMPLEMENT 

Input amplifiers 2 12AU6 

Cathode followers 1 2AT7 

Output amplifiers 1 2AT7 

Cathode followers 1 2AT7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched anodized panel. 
Weight — 4V 2 lbs. 

Price $1 75 

For low-capacitance accessory probes, please see the 
Accessory Section. 

Price f.o.b. Portland {Beaverton), Oregon. 



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PLUG-IN PREAMPLIFIERS 




TYPE 53/54K PLUG-IN UNIT 
Fast-Rise DC Preamplifier 



U 



f 



Transient Response 

With Type 541 and Type 545 
Risetime — 12 millimicroseconds. 

With Type 531 and Type 535 
Risetime — 0.031 /xsec. 

With Type 532 

Risetime — 0.07 //sec. 

Frequency Response 

With Type 541 and Type 545 

Passband — DC to 30 mc (down 3 db db % db at 
30 mc, 6 db at approximately 41 mc, 1 2 db at ap- 
proximately 55 mc) . 

With Type 531 and Type 535 
Passband — DC to 1 1 mc. 

With Type 532 

Passband — DC to 5 mc. 



Sensitivity 

Calibrated — 0.05 v/cm to 20 v/cm, 



GENERAL DESCRIPTION 

The Type 53/54K Fast-Rise Unit provides Type 541 
and Type 545 Oscilloscopes with calibrated sensitivity 
at low input capacitance, taking maximum advantage 
of the excellent transient response and wide frequency 
range of the oscilloscope vertical-deflection system. The 
Type 53/54K with either the Type 541 or Type 545 
makes a 1 2-rnillimicrosecond risetime combination, ideal 
for applications involving fast-rising waveforms. Fre- 
quency response is down 3 db ± V2 db at 30 mc, 6 db 
at approximately 41 mc, 1 2 db at approximately 55 mc. 
The combined vertical-amplifier system is dc-coupled, 
and an AC-DC switch provides for insertion of a capaci- 
tor to block the dc component of the input signal, limit- 
ing the low-frequency response to 2 cycles. 

OTHER CHARACTERISTICS 

Calibrated Sensitivity — Nine calibrated sensitivity 
steps are provided: 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, and 
20 v/cm. Each step can be adjusted over approximately 
a 2-to-l range by means of a variable control. 

Calibration Accuracy — When accurately set on any 
one step, all other steps will be within 3% of the panel 
reading. 




Input Impedance — Direct input impedance of the 
Type 53/54K is 1 megohm paralleled by 20 fifd. Input 
with the P410 Probe, furnished with Type 541 and Type 
545 Oscilloscopes, is 10 megohms paralleled by 8 /A/if. 
Other P400-Series Probes, described in the Accessory 
Section, provide input capacitances from 1 2 /x^xf to 2.5 
ju/rf, at attenuation ratios from 5 to 1 up to 1 00 to 1 . 



VACUUM TUBE COMPLEMENT 

Input cathode followers 1 2AT7 

Cathode-coupled amplifiers 2 12AU6 

Output cathode followers 2 1 2AT7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched panel. 
Weight— 3 y 2 lbs. 

Price $125 

For low-capacitance accessory probes, please see the 
Accessory Section. 

Price f.o.b. Portland (Beaverton), Oregon. 



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TYPE 570 CHARACTERISTIC-CURVE TRACER 




Pictures Dynamic Vacuum-Tube Characteristics 








Displays Family of Curves on CRT Screen 

Four to twelve characteristic curves per family. 

Plots All Important Characteristics 

Plate current against plate or grid voltage. 
Screen current against plate or grid voltage. 
Grid current against plate or grid voltage. 

Positive-Bias Curves 

Plots up to 8 positive-bias curves per family. 

Calibrated Controls 

Accurate current and voltage readings directly from 
the crt screen. 

Wide Display Range 

1 1 current ranges from 0.02 ma/div to 50 ma/div. 

9 voltage ranges from 0.1 v/div to 50 v/div. 
1 1 series-load resistors from 300 ohms to 1 megohm. 

7 grid-step values from 0.1 v/step to 10 v/step. 



GENERAL DESCRIPTION 

The Tektronix Type 570 Characteristic-Curve Tracer 
presents an accurate graphic analysis of vacuum-tube 
characteristics under almost any conceivable operating 
conditions. Circuit design can now be tailored to more 
closely fit the operating characteristics of available 
tubes. Tubes can be selected faster and more accurately 
for circuits requiring other than average vacuum-tube 
characteristics. Two-socket arrangement with front-panel 
switching permits rapid comparisons between two tubes, 
or two sections of the same tube. You can also make 
rapid comparisons with preselected curves outlined on 
a crt mask. Patch-cord connector system with socket- 
adapter plates gives you complete control of operating- 
condition setup. Various socket-adapter plates fur- 
nished and wide range of heater voltages available fit 
the requirements of practically all receiving-type 
vacuum tubes. 




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TYPE 570 CHARACTERISTIC-CURVE TRACER 




CATHODE-RAY-TUBE DISPLAY 

Vertical Axis — Concentric controls provide for se- 
lection of plate, screen, or grid current display; and se- 
lection of any one of eleven current-per-division values 
—0.02, 0.05, 0.1, 0.2, 0.5, 1 , 2, 5, 10, 20, and 50 
ma/div. A graticule divides the screen into ten vertical 
divisions. Calibration accuracy is within 3%, permitting 
accurate current readings directly from the screen. 



r 



CRT DISPLAY 



VERTICAL 



MA/DIV 
2 .5 



HORIZONTAL 
VOLTS/DIV 

GRIQ 









Horizontal Axis — Either plate or grid voltage can 
be displayed on the horizontal axis, and nine voltage- 
per-division values are available — 0.1, 0.2, 0.5, 1, 2, 5, 
10, 20, and 50 v/div. Ten horizontal divisions are scrib- 
ed on the graticule. Calibration accuracy is within 3%, 
permitting accurate voltage readings directly from the 
screen. 

Positioning — Concentric controls provide for both 
vertical and horizontal positioning of the display. 

GRID-STEP GENERATOR 

Family of Curves — A variable control is provided to 
adjust the number of curves in the display. As few as 
four and as many as twelve curves can be selected. A 
single family can be safely displayed with the tube un- 
der heavy overload conditions by means of a position on 
the STEPS/FAMILY controi and a push button. With the 
STEPS/FAMILY control in the single-family position, 
pressing the button applies the selected conditions to 
the tube for only a fraction of second. Use of the SINGLE 
FAMILY push button permits observation or photography 
of tube characteristics under unusual conditions without 
danger of damage to the tube under test. 

The STEPS/SEC switch controls the switching-rate of 
the step generator. A 1 20 or 240-steps/sec rate can be 
selected. The extra 1 20-steps/sec position causes switch- 
ing to occur at the opposite end of the characteristic 



GRID-STEP GENERATOR 



STEPS/SEC 
?40 



120 




120 



ZERO 
BIAS 



$ 



* VOLTS/STEH 



* 



/ 




curve, for convenience when the area of interest is at 
either end of the curves displayed. 

Bias voltage applied to the grid of the tube under test 
is impressed in a series of steps to produce the number of 
curves desired in the display. The voltage difference be- 
tween steps is selected by a seven-position switch. Cali- 
brated switch positions are: 0.1, 0.2, 0.5, 1, 2, 5, and 
10 volts/step, accurate within 3%. Up to 150 ma peak 
grid current is available. A variable control is provided 
to adjust the starting point to a positive voltage, zero, or 
a negative voltage. Pressing the ZERO BIAS push button 
causes the display of the zero-bias curve only, to use as 
a reference in adjusting the starting point. As many as 
eight positive-bias curves can be included in the display. 

PLATE-SWEEP GENERATOR 

An eleven-position switch selects the desired series- 
load resistance for the plate circuit of the tube under test. 
Series-load values are: 300 ohms, Ik, 2 k, 5 k, 10 k, 



PLATE-SWEEP GENERATOR 



PEAK VOLTS 

50 J00 

20 ^m^^. 200 



SERIES LOAD 

RESISTANCE OHMS 




300 



500 



100K 



200K 



500K 




300 



20 k, 50 k, 100 k, 200 k, 500 k, and 1 megohm. Power- 
handling capacity of all load resistors is sufficient to dis- 
sipate the maximum power available in the plate circuit. 
The peak voltage applied to the plate through the 
series-load resistance is selected by an eight-position 
switch. Peak voltages are: 5, 10, 20, 50, 100, 200, 300, 
and 500 volts. 

OPERATING VOLTAGES 

Heater voltage is available in 17 fixed steps: 1.25, 
1.4, 2.0, 2.35, 2.5, 3.15, 4.2, 4.7, 5.0, 6.3, 7.5, 12.6, 
18.9, 25, 35, 50, and 117 volts ac. A control permits 
adjusting the selected heater voltage approximately 
±20% for simulating the effects of low or high line 
voltage. The variable control provides sufficient spread 



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TYPE 570 CHARACTERISTIC-CURVE TRACER 



OPERATING VOLTAGES 




VAWIAMI 

■II AM k 

4 .7 5.-0 6 3 



VAKIAlUt 

+ DC 





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-DC 






between steps to supply the proper heater voltage for 
practically all receiving-type vacuum tubes. Maximum 
power available from the heater transformer is 30 watts. 

Positive dc voltage is available in five calibrated steps: 
20, 50, 100, 200, and 300 volts, accurate within 3%. 
The positive voltage is also continuously variable from 
approximately 10 to 300 v. Up to 50 ma steady current 
is supplied. An adequate reserve is available for higher 
peak currents. 

Negative dc voltage is available, continuously vari- 
able from to — 100 v. The negative dc supply is cap- 
able of delivering up to 1 watt. 

ADAPTER PLATES 

Eight quick-changing adapter plates are furnished 
with the Type 570 — 2 with octal sockets, 2 with nine- 
pin miniature sockets, 2 with seven-pin miniature sockets, 
and 2 with pilot holes only. Plate receptacle holds any 
two adapter plates at the same time. Small banana jacks 
connect to each socket terminal. Three types of patch 
cords are also furnished, making it possible to connect 
any tube element to any voltage supplied by the 
instrument. 




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w™ w^w W999 w w w 






• 
























S'f: 






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9 



KWTlANd OMOOft 




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VOITMfTER 

The built-in voltmeter indicates the positive and nega- 
tive operating voltages in seven ranges: to 7, 14, 35, 
70, 140, 350, 700 volts, accurate within 2% of full 
scale. The voltmeter can be switched to show the per- 
cent of heater voltage indicated by the heater-voltage 
selector switch. 








VOLTMETER 



RANGE DC VOLTS 



INDICATION 



J50 





OTHER FEATURES 

Tube-Socket Switching — The TEST POSITION switch 
in the center of the front panel is used to switch in either 
of two vacuum tubes during comparison tests. It has an 
OFF position for changing tubes and for establishing a 
reference trace on the screen. Control-grid potential 
drops to — 150 v in the off position. 

Safety Switch — The extremely flexible operational- 
setup facility of the Type 570 requires that potentially 
dangerous voltages be present at the patch panel. All 
voltages to the patch panel can be removed by a front 
panel switch for safety and convenience while changing 
the operation setup. A jewel light indicates when power 
is present at the patch panel. 

Regulated Power Supply — Electronic voltage regu- 
lation is used to compensate for line-voltage changes 
between 105 and 125 volts or 210 and 250 volts, and 
for variations in loading. All voltages affecting calibra- 
tions are fully regulated. Heater, negative-dc, and 
peak-plate supplies are unregulated. 

Cathode-Ray Tube — A Tektronix T52P cathode-ray 
tube is used in the Type 570. Accelerating potential is 
approximately 3 kv. PI phosphor is supplied unless an- 
other phosphor is specifically requested. 

Illuminated Graticule — The 10 x 10-division grati- 
cule is edge-lighted. Illumination control, and focus, in- 




3/56 



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TYPE 570 CHARACTERISTIC-CURVE TRACER 




tensity, and astigmatism controls are accessible through 
a door in the top of the cabinet. 

VACUUM TUBE COMPLEMENT 

Split-load phase inverters and 

shaper amplifiers 2 6AN8 

Rectifiers 2 6AL5 

Cathode follower and step-control CF . . . . 12AT7 

Clamp and coupling diode 6AL5 

Grid-step generator 6AU6 

Step-generator cathode followers 1 2AT7 

Step multivibrator 6AN8 

Disconnect diodes 6AL5 

Step CF and voltage regulator CF 12AX7 

Step amplifiers 2 6AU6 

Step amplifier 1 2AT7 

Cathode follower 6CL6 

Plate power-supply rectifiers 2 6AX4 

Rectifier diodes 6AL5 

Horizontal-deflection amplifiers 2 6AU6 

Horizontal-deflection amplifier CF 2 6AU6 

Horizontal-deflection output amplifiers . . . 6BQ7A 

Vertical-deflection amplifiers 2 6AU6 

Vertical-deflection output amplifiers 6BQ7A 

Variable dc-supply rectifier 6AX5 

Fixed dc-supply rectifier 4 6X4 

Regulator amplifiers 2 6AU6 

Voltage reference 5651 



Regulator amplifier and series regulator . . 6AN8 

Regulator amplifier 6AN8 

Series regulators 2 1 2B4 

Series regulator 6CD6GA 

Variable dc-supply CF 1 2AT7 

High-voltage oscillator 6AQ5 

Regulator amplifier and CF 12AU7 

High-voltage rectifiers 2 5642 

Cathode-ray tube T52P1 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperatures. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, gray wrinkle 
cabinet. 

Dimensions— 16 y 2 " high, 13" wide, 24%" deep. 

Weight — 75 pounds. 

Power Requirements — 105-125 or 210-250 v, 50 or 
60 cycles, 400 watts maximum, 300 watts standby. 

Price $925 

Includes: 8 — Adapter plates 
26 — Patch cords 
1 — Instruction manual 

Currently Available Extras 

PI crt phosphor normally furnished. 

P2, P7, PI 1 optional No extra charge 

Price f.o.b. Portland (Beaverton), Oregon 




Type 570 Characteristic-Curve Displays 



Fig. 1 — Plate current plotted 
against plate voltage for one tri- 
ode section of a 1 2AU7. Plate 
load is 5 k, peak plate-supply 
voltage is 500 v. Grid voltage is 
changed 5 v between curves, from 
— 35 v to zero. Vertical sensi- 
tivity is 5 ma/div, horizontal 
sensitivity 50 v/div. Calibrated 
controls permit accurate current 
and voltage readings directly 
from the screen. 





H 
El 
WA 

MS! 




Fig. 2 — Same triode section of 
12AU7 with only 20-v peak plate 
supply and sensitivities increased 
to 0.2 ma/div vertical and 2 v/div 
horizontal. Grid voltage is chang- 
ed 2 v between curves, from 
— 14 v to zero. This is essentially 
a 25-times magnification of the 
lower left portion of Fig. 1 , 
showing the operating character- 
istics at low plate-supply voltage. 



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HIHI HI 

■■■■ ■■■*» 

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Fig. 3 — Screen current plotted 
against plate voltage with posi- 
tive grid bias on a 6AQ5. Plate 
load is 300 ohms, peak plate 
voltage is 100 v, screen-grid volt- 
age is lOOv, with grid voltage 
changing 2 v/step from -[-16 v 
to below zero. Vertical scale is 
10 ma/div, horizontal scale 10 
v/div. 



Fig. 4 — Typical 1 2AU7 Eg-lp 
curves. Plate load 5 k, peak 
plate-supply voltage 500 v, grid 
voltage changing 5 v/step from 
— 35 v to zero, vertical sensitivity 
5 ma/div, horizontal sensitivity 
5 v/div. 



Fig. 5 — Another family of curves 
with positive grid bias. Screen 
current is plotted against grid 
voltage. Operating conditions of 
the 6AQ5 are identical to Fig 3, 
except horizontal sensitivity is 
2 v/div. 



Fig. 6 — Typical GERMANIUM DI- 
ODE curve. Inherent flexibility of 
the Type 570 permits accurate 
evaluation of diode characteris- 
tics and detailed examination of 
any part of the curve. Calibrated 
scales above are 0.2 v/div hori- 
zontal, 0.5 ma/div vertical, with 
zero points at center of screen. 



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ACCESSORIES 

These accessories ore designed fo 
expand the applicability of Tektronix 
Oscilloscopes in order that a greater 
benefit might accrue to the user. 




3/56 



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100 



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The Tektronix Type 500 Scope-Mobile is a sturdy, mo- 
bile support for Tektronix 5" Oscilloscopes. Convenient 
observation of the crt face is achieved by a 20-degree 
backward tilt of the top surface. Auxiliary equipment 
can be mounted in the enclosed vented space behind the 
blank front panel. A drawer, felt-lined and operating 
on roller bearings, provides handy storage for probes, 
cables, manuals, etc. An open shelf, topped with tough 
linoleum, is located at the bottom. Power input and three 
convenience outlets are mounted at the rear. Total 
weight is 42 pounds. Dimensions are 1 8 V2 " wide, 39" 
high and 30" deep $97.50 



The Tektronix Type 500/53 Scope-Mobile is the Type 
500 with a Type 53 Scope-Mobile front-panel installed. 
This front-panel has two supporting cradles to accommo- 
date the Type 53 and 53/54 Plug-In Preamplifiers used 
in the Type 530 and Type 540-Series Oscilloscopes. In 
all other characteristics the Type 500/53 is identical to 
the Type 500 $108.00 



Type 53 Scope-Mobile Panel — converts the Type 500 
into a Type 500/53 Scope-Mobile by replacing the 
standard blank panel 1 0.50 



. 



VIEWING HOODS 






H510 Viewing Hood, for Tektronix 5" Oscilloscopes. 
Includes molded rubber eye-piece and aluminum light 
shield 4.50 



H310 Viewing Hood, for Tektronix 3" Oscilloscopes. 
Includes molded rubber eye-piece and spun-aluminum 
light shield 4.50 



3/56 



Prices f.o.b. Portland (Beaverton), Oregon 

Tektronix, Inc. 




101 



and are rated at 600 v peak-to-peak. Two interchange- 
able Tektips — a straight tip and a hooked tip — each 
adding less than 0.5 }ipi to the input capacitance, are 
supplied with the probes. 

P405, P410, P420 10.50 

P450, P450-L, P4100 12.50 

Replacement Tektips, each .25 





TABLE OF P400-SERIES 


PROBE SPECI 


FICATION 






Attenuation 


INPUT 


IMPEDANCE 




DB Loss 


Resistance 


Capacitance 


Probe 


Ratio 


(Megohms) 


Minimum* 


Maximum 


at 30 MC 


P405 


5:1 


5 


12 ju/if 


19 /i/if 


1-2 


P410 


10:1 


10 


8 /i/if 


11 /i/if 


1 


P420 


20:1 


10 


5.5 /i/if 


7 fifii 


0.5-1 


P450 


50:1 


10 


3.5 jiid 


3.5 /i/if 


0.5 


P450-L 


50:1 


10 


2.5 /i/if 




0.5 


P4100 


100:1 


10 


2.5 fi/if 


2.5 /i/if 


0.5 



*When connected to Type 53/54C or 53/54K Plug-In Preamplifiers. 
fWhen connected to instruments with Input capacitances up to 50 /i/if. 




P510A Attenuator Probe provides an attenuation of 
ten times when used with Tektronix oscilloscopes and am- 
plifiers. The P510A is small and streamlined, and pre- 



UJ6 HIMT-m^^^P^^VIMVI^^^^HBaH^M^Ha^HV^^w— ■ 

lower tube is a 5718 triode whose cathode load is the 
170-ohm termination of the preamplifier grid line in the 
Type 517. Plate and heater voltages for this tube are 
provided at a four-terminal socket on the panel of the 
oscilloscope. The signal is attenuated by 2 times when 
using the P170CF. The input impedance of the probe 
will depend on the attenuator head being used, also 
since transit time in the cathode-follower tube is involv- 
ed, it will decrease appreciably at the higher frequen- 
cies. When the probe is used without an attenuator 
head, the input looks like 12 megohms shunted by 5 /x/tf. 
Probe complete with 3 attenuator heads 86.00 

PAX-I Attenuator Head for P170CF, attenuation may 
be varied between 4 times and 40 times 1 1.00 

PAX-II Attenuator Head for P170CF, attenuation may 
be varied between 20 times and 200 times 11.00 

PAX-MI Attenuator Head for P170CF, attenuation may 
be varied between 200 timees and 2000 times. . 1 1.00 

P170CF may be used with the Type 513 Oscilloscope, 
but low-frequency response will suffer somewhat, de- 
pending on the attenuator head being used. It is neces- 
sary to terminate the 170-ohm cable at the oscilloscope 
input. B170R terminating resistor is designed for this. 
(See terminations.) A rectifier kit, KP170CF, is recom- 
mended for installation in Type 513 to rectify the 6.3^ 
volt heater supply. u^*^"«'S 

KP170CF DC Filament Kit for P170CF ^4.50 



•I 



102 



Prices f.o.b. Portland ( Beaverton ) , Oregon 

Tektronix, Inc. 



i 



ACCESSORIES 



Operational Accessories 




■• 





P500CF Cathode-Follower Probe — For use with Types 
524D and 524AD Oscilloscopes. Presents low capaci- 
tance with minimum attenuation. Input impedance is 40 
megohms paralleled by 4 ppf, gain 0.8 to 0.85. Input to 
probe is ac-coupled, limiting its low-frequency response 
to 5 cycles. Amplitude distortion is less than 3% on 
unidirectional signals up to 5 volts. 1 Ox attenuator head 
is included with probe, and should be used on signals 
exceeding a few volts to minimize amplitude distortion. 
With the attenuator head attached, the probe input im- 
pedance is approximately 10 megohms paralled by 2/x/ii. 
Probe output level is 1 1 v positive, making it necessary 
to use the ac-coupled position of the oscilloscope AC-DC 
switch 64.00 

A modification kit is available to equip the Type 524D 

Oscilloscope with a front-panel probe-power connector. 

Modification Kit K524-1021A 5.00 



TERMINATIONS, PADS, ATTENUATORS 




B52-T10 52-ohm T pad, 10 to 1 voltage ratio, 

1.5 w 11.50 

B75-R 75-ohm terminating resistor, 1.5 w. . 8.50 

B75-L5 75-ohm T pad, 5 to 1 voltage ratio, 

1.5 w 8.50 

B75-L10 75-ohm T pad, 10 to 1 voltage ratio, 

1 .5 w 8.50 

B75-T10 75-ohm T pad, 10 to 1 voltage ratio, 

1.5 w 11.50 

B93-R 93-ohm terminating resistor, 1.5 w. . 8.50 

B93-L5 93-ohm T pad, 5 to 1 voltage ratio, 

1.5 w 8.50 

B93-L10 93-ohm L* pad, 10 to 1 voltage ratio, 

1.5 w 8.50 

B93-52L Minimum-loss pad, 93 ohms to 52 

ohms, 1 .5 w 11 .50 

B93-T10 93-ohm T pad, 10 to 1 voltage ratio, 

1.5 w 11.50 

B170-R 170-ohm terminating resistor, 1.5 w. . 8.50 

B170-A 170-ohm attenuator, 1 to 64 db in 

1 db steps, 0.25 w 45.00 




3/56 



B52-R 52-ohm terminating resistor, 1.5 w. . 8.50 FB 310 Fan Base — for Type 310 Oscilloscope. Pro- 

B52-L5 52-ohm T pad, 5 to 1 voltage ratio, vides filtered, forced-air ventilation to assure safe op- 

1.5 w 8.50 erating temperature when the Type 310 Oscilloscope is 

being used continuously over long periods, or in hot or 
B52-L10 52-ohm T pad, 10 to 1 voltage ratio, limited-ventilation areas. The fan base tilts the oscillo- 

' w scope to a convenient viewing angle. For use on 105- 

B52-75L Minimum-loss pad, 52 ohms to 75 125 v, 60 cycle only 25.00 

ohms 11 .50 

B52-170L Minimum-loss pad, 52 ohms to 170 FB 310-S1 Fan Base — for use on 210-250 v, 50 to 
ohms 1 1 .50 60 cycles only 25.00 

Prices f .o.b. Portland ( Beaverton ) , Oregon 

Tektronix, Inc. 



103 



ACCESSORIES 



Operational Accessories 




BE510 Bezel, for mounting camera on Tektronix 5" 
oscilloscopes. Dimensions — 5% " square; ring % " deep, 
diameter 5 S M" outside, 5V&" inside. Die-cast construc- 
tion, gray wrinkle finish, felt lined 4.50 




C0181 Crystal-Oven Combination — A 1-mc crystal 
mounted in a temperature-stabilized oven. Directly in- 
terchangeable with standard crystal. Plugs into crystal 
socket of the Type 181 — no wiring changes necessary. 
Provides a frequency stability of 2 ppm over a 24-hour 
period 27.00 

MISCELLANEOUS 

Al 00 Adapter, clip lead 2.00 

A510 Adapter, binding post 2.00 

FA1 60 Frame, mounting, for Type 1 22 and 

Type 160-Series units 5.00 




F30 Production Test Fixture, for use with the Type 1 30 
L,C Meter. Speeds sorting and testing of capacitors and 
inductors 3.00 

CO AX/ AL CABLES 

P52 Coaxial cable, 52 ohms nominal imped- 
ance, 42" long 4.00 

P75 Coaxial cable, 75 ohms nominal imped- 
ance, 42" long 4.00 

P93 Coaxial cable, 93 ohms nominal imped- 
ance, 42" long 4.00 

P93A Coaxial output cable, 93 ohms, termin- 
ated with variable attenuator, 42" long. . 13.50 

P93B Coaxial output cable, 93 ohms, termin- 
ated with V 2 -watt 93-ohm resistor, 42" 
long 5.00 

PI 70 Coaxial cable, 170 ohms nominal imped- 
ance, 42" long 9.50 

DELAY NETWORKS 

1-D-25 Delay network, 0.25 /Asec delay, 

for Type 511 50.00 

1-AD-25 Delay network, 0.25 jusec delay, 

for Type 51 1 A 50.00 

3-D-25 Delay network, 0.25 jusec delay, 

for Type 513 65.00 

4-D-25 Delay network, 0.25 jusec delay, 

for Type 514 50.00 




€ 



104 



Tektronix, Inc. 



•i 



3/56 



I 




to 




ACCESSORIES 



Test Accessories 




015-001 (S30) Delta Standards, for calibration of 
the Type 130 L,C Meter. The unit provides accurately 
adjusted steps of capacitance and inductance, selected 
by a rotary selector switch. Values of the capacitance 
steps correspond to the full-scale adjustments required 
on the five scales of the Type 130. Two resistors of 
identical manufacture and similar capacitance, values 
of 1 megohm and 0.1 megohm, are provided for the 
resistance compensation adjustment. A 300-/j.h stand- 
ard permits proper adjustments of the inductance 
ranges 22.00 




013-002 (EP53) Plug-in Extension — Allows the 
plug-in preamplifier unit for the Type 530 and Type 
540-Series Oscilloscopes to be operated partially out of 
its housing. A convenient accessory in making attenuator 
and transient response adjustments 5.00 




013-005 (EP53A) Gain Set Adapter — Permits an ex- 
ternal calibrating signal to bypass the plug-in preampli- 
fier, for calibrating the sensitivity of the main amplifier 
of Type 530 and 540-Series Oscilloscopes 5.00 




■ 



011-021 (CS 47) Input Capacitance Standardizer — For 
use with Type 53 and Type 53/54 Plug-In Preamplifiers 
having an input capacitance of 47 /x/if. With this acces- 
sory the input capacitance of each preamplifier can be 
standardized to 47 /i/if, eliminating the necessity for 
probe readjustment when used with different plug-in 
preamplifiers 11 .50 

011-022 (CS 20) Input Capacitance Standardizer — 
Similar to 011-021 (CS 471, for use with the Type 
53/54C and Type 53/54K Plug-In Preamplifiers having 
20 /x/xf input capacitance 11 .50 



3/56 



Prices f.o.b. Portland (Beaverton), Oregon 
Tektronix, Inc. 



105 



ACCESSORIES 



Replacement Parts 



386-395 
386-312 
331-027 



331-005 
386-326 
331-023 

331-006 



331-010 

331-007 
331-008 
331-009 

331-029 
331-026 
331-016 

331-025 

331-028 



378 
378 
?78 

/378 
378 

J 378 



161 
161 
161 



506 
505 
507 
-501 
■503 
504 



GRATICULES 

Unruled, for Type 310. . 

Unruled, for Type 315 

Quarter-inch divisions, 8 divisions verti- 
cally, 10 horizontally, for Type 310 and 

360 

Quarter-inch divisions, 8 divisions verti- 
cally, 10 horizontally, for Type 315. . . 
Unruled, fits Types 51 1 A, 512, 513, 

514, 514A, 524D, 524AD 

Centimeter ruling, 4 centimeters verti- 
cally, 10 horizontally, for Types 51 1A 

and 514 with 5CP CRT 

Centimeter ruling, 6 centimeters verti- 
cally, 10 horizontally, for Type 512 
with 5CP CRT, Types 514A, 524D, 
524AD and Type 51 1 A with 5ABP CRT 
Centimeter ruling, 8 centimeters verti- 
cally, 10 horizontally, for Type 512 

with 5ABP CRT 

Centimeter ruling, 4 centimeters verti- 
cally, 8 horizontally, for Type 513. .. . 
Centimeter ruling, 4 centimeters verti- 
cally, 8 horizontally, for Type 517. .. . 
TV RMA style ruling for percentage 
measurements, for Types 524D and 

524AD 

Ruling in percentages, — 40 to +100, 

for Type 525 

Centimeter ruling, 8 centimeter verti- 
cally, 10 horizontally, for Type 532. . . 
Centimeter ruling, 6 centimeters verti- 
cally, 10 horizontally, for Types 531 

and 535 

Centimeter ruling, 4 centimeters verti- 
cally, 10 horizontally, for Types 541 

and 545 

Division ruling, 10 divisions vertically, 
1 horizontally, for Type 570 

CATHODE-HAY TUBE LIGHT FILTERS 

3" Amber (for Type 31 5D} 

3" Green (for Type 31 5D) 

3" Blue (for Type 31 50) 

(F510-3) 5" Amber 

(F510-5) 5" Green 

(F510-6) 5" Blue 



1.00 
1.00 



1.50 
1.50 
1.00 

1.50 



AC POWER CORDS 

■ 004 (COP 16-8) No. 16 wire, 8' long. 

003 (COP 18-1) No. 18 wire, T long. 

■001 (COP 18-8) No. 18 wire, 8' long. 



SPECIAL CORDS AND LEADS 

012-007 (W112R) Red output lead for Type 1 1 2 
012-008 (W112B) Black output lead for Type 

112 

012-009 (W122) Battery power lead for Type 

122 



1.50 

1.50 
1.50 
9.50 

1.50 
1.50 
1.50 

1.50 

1.50 
1.50 



.50 
.50 
.50 
.90 
.90 
.90 



2.40 

.85 

1.50 



1.00 
1.00 
7.50 



012-014 (W130B) Black output lead for Type 

130 

012-015 (W130R) Red output lead for Type 130 
012-016 (Wl 60-20) 20" inter-unit power cable 

for Type 1 60-Series 

012-017 (W160-10) 10" inter-unit power cable 

for Type 1 60-Series 

012-012 (W517) Inter-unit power cable for 

Type 517 

012-013 (W530B) Black test lead for Types 530 

and 540-Series Oscilloscopes 

MISCELLANEOUS 

01 1-018 Attenuator unit, for Type 190 

010-003 P93C Probe, for Type 130 

01 4-003 FM 1 24 Mounting frame, for Type 1 24 . 



INSTRUCTION MANUALS 



104A 

105 

112 

121 

122 

123 

124 , 

130 

160 or 160A 

161 



1 62 

163 

1 80 

181 

190 

310 

315D 

360 

511Aor 511AD. .. 

512 

513 or 513D 

514 or 514D 

514A or 514AD. . 

515 

517 or 517A 

524D or 524AD. . 
525 

531 

532 

535 

541 

545 

53A or 53/54A. 
53B or 53/54B. 
53C or 53/54C. 

53/54D 

53/54E 

53G or 53/54G. 

53/54K 

570 



1.00 
1.00 

2.00 

2.00 

9.50 

1.00 



19.00 
2.00 
5.00 



1.50 

1.75 

1.50 

1.50 

1.50 

1.50 

1.75 

1.50 

1.50 

1.50 

1.50 

1.50 

2.00 

1.75 

1.50 

3.50 

4.00 

1.75 

2.75 

2.75 

2.75 

2.75 

3.00 

4.00 

4.50 

5.00 

4.50 

4.50 

4.50 

5.00 

4.50 

5.00 

1.50 

1.50 

1.50 

1.50 

1.50 

1.50 

1.50 

4.50 



c 



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106 



Tektronix, Inc. 



3/56 




GENERAL INFORMATION 



to 




Terms and Shipment 

Our terms are 1 % ten days, net thirty days on domes- 
tic orders; on overseas orders terms are net letter of 
credit or advance payment. Shipping delay may be 
prevented by establishing credit at time of placing order. 
When desirable, C.O.D. shipments can be arranged. All 
prices are f.o.b. Portland (Beaverton) , Oregon. 

For information relative to discounts on quantity pur- 
chases, please contact your nearest Tektronix field of- 
fice, representative, or distributor. 

Although all quotations are for shipment f.o.b. Port- 
land (Beaverton), Oregon, upon request transportation 
costs can be prepaid and the amount added to the in- 
voice. 

Normally, shipments are made by Railway Express or 
Motor Freight. If shipment by air is desired, please 
specify Air EXPRESS or Air FREIGHT. Experience has 
eliminated rail freight as a satisfactory method of sur- 
face transportation for electronic instruments. 



Export Orders 

To provide our overseas customers with instruments at 
published catalog prices, assistance in ordering, and 
most important, service after receipt of their instruments, 
Tektronix has established authorized distributors in many 
overseas countries. To take advantage of these services, 
available ONLY through your AUTHORIZED TEKTRONIX 
DISTRIBUTOR, and to eliminate the necessity of paying 
a premium for our instruments, please direct all inquiries 
and orders to the TEKTRONIX DISTRIBUTOR in your 
country. Customers in a country not presently served by 
an authorized Tektronix distributor are asked to send 
all inquiries and orders directly to Tektronix, Inc., Port- 
land, Oregon. 



Delivery 

Acceptance of purchase orders is indicated by our ac- 
knowledgement, and estimated shipment time is given 
from date of acknowledged acceptance. Every effort 
is made to meet the estimated shipment date, but there 
is the possibility that circumstances beyond our control 
might make it impossible to meet the quoted schedules. 



Field Maintenance 

Tektronix Field Maintenance is provided on a non- 
profit basis, as a service to our customers. Work is ex- 
pedited whether or not the instrument is in warranty. 

Requests for repairs or replacement parts should in- 
clude type number and serial number and should be 
directed to our representative or branch office in your 
area. In an emergency, please wire or phone Field 
Engineering, Tektronix, Inc., Portland, Oregon, in ad- 
dition to notifying the local representative. This pro- 
cedure will assure you the fastest possible service. 

If an instrument must be returned to the factory for 
repairs, notify Field Engineering directly or through the 
local representative, indicating type number and 
serial number, and you will be notified at once as to 
procedure to be followed. PLEASE DO NOT RETURN 
AN INSTRUMENT BEFORE RECEIVING DIRECTIONS. In- 
struments and parts returned from countries other than 
the United States must be accompanied by an in- 
voice to clear through customs. 

It is standard practice for Tektronix to incorporate 
improvements as they are developed in our laboratories. 
Owners of existing instruments are notified of modifica- 
tions, and modification kits are made available, when 
practicable, to those who wish to modernize their own 
instruments. 

For customers who have large quantities of Tektronix 
instruments and wish to equip their maintenance de- 
partments with factory-tested components, integrated 
kits of parts are available. Kits are designed to cover 
expected needs of a group of ten instruments of the 
same type. 

Warranty 

All Tektronix instruments are fully guaranteed against 
defective materials and workmanship for one year. 
Should replacement parts be required, whether at no 
charge under .warranty or at established net prices, 
notify us promptly, including sufficient details to identify 
the required parts. We will ship them prepaid (via air 
if requested) as soon as possible, usually within 24 
hours. 

Tektronix transformers, manufactured in our own 
plant, carry an indefinite warranty. 



3/56 



107 













€ 




108 



3/56 



APPROXIMATE SHIPPING WEIGHTS 




!• 



I 




INSTRUMENT NET WEIGHT 

TYPE IN POUNDS 

104A 22 

105 35 Vj 

112 32 

121 18V2 

122 5% 

124 21 

130 9 

160 Series 33 

160A 21 

161 VA 

162 3V 2 

163 3V 2 

FA-160 1V 4 

1 80 37 

181 \7Vt 

190 24 

310 23 T / 2 

31 5D 36 

360 9 

517A 

Indicator Unit ... 76 

Power Supply ... 72 

Scopemobile .... 42 

524AD 61 

Viewing Hood ... 1 Va 

525 54 

531 61 Vi 

532 52 

535 65 

541 61 Vi 

545 65 

53/54A 3V 2 

53/54B 3V 2 

53/54C 5Vt 

53/54D 4 

53/54E 4V 2 

53/54G 4Vi 

53/54K 3Va 

570 75 

500 42 



DOMESTIC 




EXPORT 


PACKED 


PACKED 


WEIGHT IN 


VOLUME IN 


IN POUNDS 


POUNDS 


KILOGRAMS 


CU. FT. 


30 


53 


24 


5 


47 


64 


29 


5 


49 


75 


51 


7 


24 


45 


20 


4 


9 


16 


7 


1 


32 


55 


25 


5 


17 


40 


18 


4 


56 


74 


34 


7 


28 


45 


20 


4 


7 


14 


6 


1 


7 


14 


6 


1 


7 


14 


6 


1 


3 








49 


66 


30 


5 


34 


49 


22 


7 


35 


55 


25 


5 


31 


48 


22 


4 


47 


60 


27 


4 


17 


32 


15 


4 


101 


127 


58 


9 


83 


105 


48 


5 


62 


67 


30 


7 


84 


106 


48 


8 


4 


11 


5 


1 


72 


101 


46 


9 


82 


107 


49 


8 


73 


97 


44 


8 


87 


111 


50 


8 


82 


107 


49 


8 


87 


111 


50 


8 


10 


12 


5 




10 


12 


5 




12 


14 


6 




11 


14 


6 




12 


14 


6 




12 


14 


6 




10 


12 


5 




96 


116 


53 


8 


53 


62 


28 


7 



I 



3/56 



109 



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110 



3/56 



Tektronix., Inc. 




to 




AN OREGON CORPORATION 

Main Office and Factory — Sunset Highway and Barnes Road 

Mailing Address — P. O. Box 831, Portland 7, Oregon 
Phone— CYpress 2-2611 • TWX— PD 265 • Cable— TEKTRONIX 

Tektronix Field Engineering Offices 

ALBUQUERQUE Tektronix, Inc., 127C Jefferson St., N. E., Albuquerque, New Mexico Phone: 6-1279 

BALTIMORE Tektronix, Inc., 8118 Harford Road, Baltimore 14, Maryland NOrthfield 5-2600 

Washington Area Phone ENterprise 1 -6023 

BOSTON Tektronix, Inc., 1 8 Austin St., Newtonville 60, Massachusetts LAsell 7-221 2 

CHICAGO Tektronix, Inc., 7514 W. North Ave., Elmwood Park 35, Illinois. . . .TWX — RIVER GROVE ILL 1395. .GLadstone 6-7930 

CLEVELAND Tektronix, Inc., 3353 Edgecliff Terrace, Cleveland 1 1 , Ohio CLearwater. 2-2121 

Detroit Area: ENterprise 7121 Pittsburgh Area: ZEnith 0212 

DAYTON Tektronix, Inc., 3898 Linden Ave., Room 2 1 2, Dayton 3, Ohio Lincoln 1 774 

LOS ANGELES Tektronix, Inc., 1 2434 Santa Monica Blvd., West Los Angeles 25, California GRanite 3-1 1 05 

NEW YORK Tektronix, Inc., 49 Pondfield Road, Bronxville 8, New York. . . .TWX — BRONXVILLE NY 1207 DEerfield 7-3771 

PHILADELPHIA Tektronix, Inc., 7709 Ogontz Ave., Philadelphia 38, Pennsylvania WAverly 4-5678 

PHOENIX Tektronix, Inc., 241 5 E. McDowell Road, Phoenix, Arizona BRidge 5-9762 

SAN FRANCISCO .... Tektronix, Inc., 1436 El Camino Real, Menlo Park, California DAvenport 2-5590 

SYRACUSE Tektronix, Inc., 313 Nottingham Road, Syracuse 10, New York Phone: 7.?-3339 

Tektronix Engineering Representatives 

ATLANTA Bivins 8. Caldwell, 3133 Maple Drive, N. E., Atlanta 5, Georgia CHerokee 7522 

DALLAS M. F. Klicpera Company, P. O. Box 4117, Sta. A, Dallas 8, Texas FEderal 0992 

DENVER Hytronic Measurement Associates, 446 Broadway, Denver 3, Colorado SHerman 4-2241 

FORT MYERS Arthur Lynch & Associates, P. O. Box 466, Fort Myers, Florida EDison 4-4431 

HIGH POINT Bivins & Caldwell, Security Bank Bldg., High Point, North Carolina Phone: 3672 

HOUSTON ^ H i T i riiipuu Cui ii pui ryT P. O. IT51 3113, lluus l O II 1, T tiJUm .. . . P.VT. JAckson 2-8459 

PORTLAND . . Hawthorne Electronics, 700 S. E. Hawthorne Blvd., Portland 14, Oregon BEImont 4-9375 

Tektronix Overseas Distributors 

BERLIN Rohde & Schwarz Vertriebs, GmbH, Berlin W30, Augsburgerstrasse 33, West Germany 91 27 62 

BOMBAY Electronic Enterprises, 46, Karani Building, Opp. Cama Baug., New Charni Road, Bombay 4, India 75376 

BRUXELLES Regulation-Mesure, S.P.R.L. 22, rue Saint-Hubert, Bruxelles, Belgium Phone: 34. 42. 96 

HANNOVER Rohde & Schwarz Vertriebs, GmbH, Hannover, Schillerstrasse 23, West Germany 2 33 80 

HELSINKI Into O/Y, 1 1 Meritullinkatu, Helsinki, Finland 21 425, 31 025 

ISRAEL Landseas Products Corp., 39 Broadway, New York 6, New York WHitehal! 3-6026 

Landseas Easlern Co., P. O. Box 2554, Tel Aviv, Israel 

JOHANNESBURG Protea Holdings, Ltd., 7 Newton St., Wemmer, Johannesburg, Union of South Africa 33-2211 

KARLSRUHE Rohde 8. Schwarz Vertriebs, GmbH, Karlsruhe, Kriegstrasse 39, West Germany 250202 

KOBENHAVN Tage Olsen A/S, Centrumgaarden, Roo.m 133, 6D, Vesterbrogade, Kobenhavn V, Denmark Palae 1369, Palae 1343 

KOLN Rohde 8. Schwarz Vertriebs, GmbH, Koln, Habsburger-Ring 2-12, West Germany 215341 

LONDON .Livingston Laboratories Ltd., Retcar Street, London N.l 9, England Archway 6251 

MUNCHEN Rohde & Schwarz Vertriebs, GmbH, Munchen 9, Auerfeldstrasse 22, West Germany 4 46 38 

OSLO Eugen Nilsson, Mollergaten 8, Oslo, Norway 33 14 28, 33 27 62 

PARIS Maurice I. Parisier & Co., 1860 Broadway, New York 23, New York Circle 5-5701 

Relations Techniques Intercontinentales, 145, Avenue Malakoff, Paris 16, France Passy 08-36, Kleber 54-82 

RIO DE JANEIRO . . . . Empresa Comercial Importadora Limitada, Rua Araujo Porto Alegre, 70-8°, Rio De Janeiro, Brazil 42-9460 

ROMA CESA-Elettronica, viale Liegi N.62, Roma, Italy 846.592, 865.722 

STOCKHOLM Erik Ferner AB, Bjornsonsgatan 1 97, Bromma, Stockholm, Sweden 377700 

THE HAGUE C. N. Rood, Weteringkade 37, The Hague, Netherlands 771 920 

TOKYO Midoriya Electric Co., Ltd., 3-4 Chome, Ginzanishi, Chuo-Ku, Tokyo, Japan Kyobashi (56) 0486 

ZURICH Omni Ray AG, Dufourstrasse 56, Zurich 8, Switzerland (051 ) 34-44-30 

Other OVERSEAS areas please write or cable directly tc the Export Department, Portland, Oregon, U.S.A. 

3/56 
Printed in U. S. A. 



3/56 



111 



o 



I 
I 






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112 



3/56 



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1 



Wide Band 
Low Level 



Miniature 



ill* N 

105 
112 

121 
122 

123 

I--."' 

160 

loOA 

101 

163 
18C 
l80 -SI (Has an oven) 

180 -S2 

181 

131-S1 (Has en even) 

190 
3-lC 
310-S1 

315D 
315D-S1 

315D-3S? 

315B 

315R-S1 

<15H-S2 
3o0 

51TA 

52UAD 
525 

531 
532 

535 
535-S2 

53A 
53B 

53C 

53/5to 
53/5^E 
530 
53/5^K 

570 

500 - Scopemooile 

500/53 " W. Panel 

BE 510 Bezel 

H510 - Viewing Hood 

H310 - Viewing Hood 



inn ng J 



/' 



515 
5131 



Name 

S*uar* W Lve Genera I 
juarc Wave Gem 1 uor 

Amplif j er 
Preampiii i c -*~ 
Preamp] ifier 
Preamplifier 
Television Adaptor 
[ , C Keicr 

♦ -.--' c s Wavef o :-m Genera bors 

Power Supply 
Pulse Generator 
Wavef >nn Generator 
> . o-Rise Pulse Generator 
Time -Marls Generator 
Time-MarK Generator 
Time-Mark Generator (*00 ^vcie 
Time -Mark Generator 
Time -Mark Generator 
Signal Generator 
Oscilloscope 
Oscilloscope 
Oscilloscope 
Oscilloscope 
Oscilloscope 
Oscilloscope 
Oscilloscope 
Oscilloscope 
Indicator 
Oscilloscope 
Oscilloscope 
Oscilloscope 

Television Waveform Monitor 
Oscilloscope 
Oscilloscope 
Oscilloscope 

Oscilloscope - see mod. list 
Oscilloscope 
Oscilloscope 

Wide -Band DC Preamplifier 
Wide-Band High-Gain Preamplifier 
Dual-Trace Preamplifier 
Differential High-Gain DC Preamp. 
Low-Level Differential AC Preamp. 
Differential Wide-Band DC Preamp. 
Fast-Rise DC Preamplifier 
Characteristic -Curve 
• Operational Accessories 
Operational Accessories 
Operational Accessories 
Operational Accessories 
Operational Accessories 

V*o&iiI«»ecme~ 



Additional 





Otcilloseepe 
field Kit 

parw 

.00 

.00 

J. 00 



Price 

$ 195 .0( 
$ 395.0C 

$ ^95*c 

$ ^ 5 
$ 3s. 

$ • ' 
* 29 r - 
$ 195.'* 



Weight 



>U 



$ lU0.» 

95.0c 

c O-' 

$ 57 5. 00 •?**»■ 

$ 625.00 



0.9 

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$ 



^05.00 
22S. 00 



$ 2^5.00 
$ 275.00 
$ 595-00 






25 



r >95.00 



$ 770.00 



1/2 

1/2 



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7 1 

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$ 795.00 

$ 810.00 

$ 515. oc 
$ 195.00 
$ 750 .00 
$3500.00 
$ll8o.oo*JP/,*«£"33 /3,f 
$1050.00 72 

$ 99S.oo^^^52/4/ 

$ 825. 00*- ***•!} >**. 
$1300.00^*^*7 /4V 
$1325.00 87 

$11^5.00^*7^2 W 

$i^50.oo£-/,«w%7 i** 

$ 65.00 
$ 125.00 

$ 275.00 
$ 1^5.00 
$ 165.00 
$ 175.00 
$ 125.00 

$ 925.00 

$ 97 • 50 
$ 108.OO 
$ U.50 
$ h . 50 



10 
10 



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11 

12 
12 
10 
84 

53 
53 



♦750.00 

$825.00 







♦For further imfe em l^k *»«* atanin o* 
n S" ■odifieotiea* eee «*'• 37A mad 3oa. 



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